Home / 105,743.64-158,615.46-53,116.23

Finding the Fourth Proportional to 105,743.64, 158,615.46 and 53,116.23

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Solution

The fourth proportional to 105,743.64, 158,615.46 and 53,116.23 is: 79,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.64 : 158,615.46 = 53,116.23 : x
  2. Step 2: Convert to fraction form
    105,743.64/158,615.46 = 53,116.23/x
  3. Step 3: Cross multiply
    105,743.64x = 158,615.46 × 53,116.23
  4. Step 4: Simplify right side
    105,743.64x = 8,425,055,254.92
  5. Step 5: Solve for x
    x = 8,425,055,254.92/105,743.64
  6. Step 6: Final answer
    x = 79,674.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.