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Finding the Fourth Proportional to 145,642.82, 218,549.14 and 61,397.82

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Solution

The fourth proportional to 145,642.82, 218,549.14 and 61,397.82 is: 92,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,642.82 : 218,549.14 = 61,397.82 : x
  2. Step 2: Convert to fraction form
    145,642.82/218,549.14 = 61,397.82/x
  3. Step 3: Cross multiply
    145,642.82x = 218,549.14 × 61,397.82
  4. Step 4: Simplify right side
    145,642.82x = 13,418,440,605.38
  5. Step 5: Solve for x
    x = 13,418,440,605.38/145,642.82
  6. Step 6: Final answer
    x = 92,132.53

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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.