Home / 151,115.04-208,532.18-83,127.70

Finding the Fourth Proportional to 151,115.04, 208,532.18 and 83,127.70

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Solution

The fourth proportional to 151,115.04, 208,532.18 and 83,127.70 is: 114,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,115.04 : 208,532.18 = 83,127.70 : x
  2. Step 2: Convert to fraction form
    151,115.04/208,532.18 = 83,127.70/x
  3. Step 3: Cross multiply
    151,115.04x = 208,532.18 × 83,127.70
  4. Step 4: Simplify right side
    151,115.04x = 17,334,800,499.39
  5. Step 5: Solve for x
    x = 17,334,800,499.39/151,115.04
  6. Step 6: Final answer
    x = 114,712.61

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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.