Home / 83,515.86-125,273.78-72,237.68

Finding the Fourth Proportional to 83,515.86, 125,273.78 and 72,237.68

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Solution

The fourth proportional to 83,515.86, 125,273.78 and 72,237.68 is: 108,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,515.86 : 125,273.78 = 72,237.68 : x
  2. Step 2: Convert to fraction form
    83,515.86/125,273.78 = 72,237.68/x
  3. Step 3: Cross multiply
    83,515.86x = 125,273.78 × 72,237.68
  4. Step 4: Simplify right side
    83,515.86x = 9,049,486,244.47
  5. Step 5: Solve for x
    x = 9,049,486,244.47/83,515.86
  6. Step 6: Final answer
    x = 108,356.50

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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.