Home / 99,634.71-137,534.28-72,988.85

Finding the Fourth Proportional to 99,634.71, 137,534.28 and 72,988.85

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Solution

The fourth proportional to 99,634.71, 137,534.28 and 72,988.85 is: 100,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634.71 : 137,534.28 = 72,988.85 : x
  2. Step 2: Convert to fraction form
    99,634.71/137,534.28 = 72,988.85/x
  3. Step 3: Cross multiply
    99,634.71x = 137,534.28 × 72,988.85
  4. Step 4: Simplify right side
    99,634.71x = 10,038,468,434.56
  5. Step 5: Solve for x
    x = 10,038,468,434.56/99,634.71
  6. Step 6: Final answer
    x = 100,752.73

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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.