Home / 98,471.16-147,356.82-72,110.52

Finding the Fourth Proportional to 98,471.16, 147,356.82 and 72,110.52

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Solution

The fourth proportional to 98,471.16, 147,356.82 and 72,110.52 is: 107,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,471.16 : 147,356.82 = 72,110.52 : x
  2. Step 2: Convert to fraction form
    98,471.16/147,356.82 = 72,110.52/x
  3. Step 3: Cross multiply
    98,471.16x = 147,356.82 × 72,110.52
  4. Step 4: Simplify right side
    98,471.16x = 10,625,976,915.75
  5. Step 5: Solve for x
    x = 10,625,976,915.75/98,471.16
  6. Step 6: Final answer
    x = 107,909.53

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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.