Home / 103,630.71-155,446.05-68,562.16

Finding the Fourth Proportional to 103,630.71, 155,446.05 and 68,562.16

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Solution

The fourth proportional to 103,630.71, 155,446.05 and 68,562.16 is: 102,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.71 : 155,446.05 = 68,562.16 : x
  2. Step 2: Convert to fraction form
    103,630.71/155,446.05 = 68,562.16/x
  3. Step 3: Cross multiply
    103,630.71x = 155,446.05 × 68,562.16
  4. Step 4: Simplify right side
    103,630.71x = 10,657,716,951.47
  5. Step 5: Solve for x
    x = 10,657,716,951.47/103,630.71
  6. Step 6: Final answer
    x = 102,843.23

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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.