Home / 99,817.47-149,857.43-91,565.19

Finding the Fourth Proportional to 99,817.47, 149,857.43 and 91,565.19

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Solution

The fourth proportional to 99,817.47, 149,857.43 and 91,565.19 is: 137,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,817.47 : 149,857.43 = 91,565.19 : x
  2. Step 2: Convert to fraction form
    99,817.47/149,857.43 = 91,565.19/x
  3. Step 3: Cross multiply
    99,817.47x = 149,857.43 × 91,565.19
  4. Step 4: Simplify right side
    99,817.47x = 13,721,723,593.04
  5. Step 5: Solve for x
    x = 13,721,723,593.04/99,817.47
  6. Step 6: Final answer
    x = 137,468.16

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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.