Home / 114,528.76-158,120.58-76,342.12

Finding the Fourth Proportional to 114,528.76, 158,120.58 and 76,342.12

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Solution

The fourth proportional to 114,528.76, 158,120.58 and 76,342.12 is: 105,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,528.76 : 158,120.58 = 76,342.12 : x
  2. Step 2: Convert to fraction form
    114,528.76/158,120.58 = 76,342.12/x
  3. Step 3: Cross multiply
    114,528.76x = 158,120.58 × 76,342.12
  4. Step 4: Simplify right side
    114,528.76x = 12,071,260,292.83
  5. Step 5: Solve for x
    x = 12,071,260,292.83/114,528.76
  6. Step 6: Final answer
    x = 105,399.38

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Double scale
Find fourth proportional to 114,529.76, 158,121.96 and 76,343.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.