Home / 103,403.20-142,660.07-67,614.16

Finding the Fourth Proportional to 103,403.20, 142,660.07 and 67,614.16

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Solution

The fourth proportional to 103,403.20, 142,660.07 and 67,614.16 is: 93,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,403.20 : 142,660.07 = 67,614.16 : x
  2. Step 2: Convert to fraction form
    103,403.20/142,660.07 = 67,614.16/x
  3. Step 3: Cross multiply
    103,403.20x = 142,660.07 × 67,614.16
  4. Step 4: Simplify right side
    103,403.20x = 9,645,840,798.59
  5. Step 5: Solve for x
    x = 9,645,840,798.59/103,403.20
  6. Step 6: Final answer
    x = 93,283.77

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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.