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Finding the Fourth Proportional to 123,643.35, 185,463.00 and 39,402.39

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Solution

The fourth proportional to 123,643.35, 185,463.00 and 39,402.39 is: 59,102.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,643.35 : 185,463.00 = 39,402.39 : x
  2. Step 2: Convert to fraction form
    123,643.35/185,463.00 = 39,402.39/x
  3. Step 3: Cross multiply
    123,643.35x = 185,463.00 × 39,402.39
  4. Step 4: Simplify right side
    123,643.35x = 7,307,685,796.67
  5. Step 5: Solve for x
    x = 7,307,685,796.67/123,643.35
  6. Step 6: Final answer
    x = 59,102.94

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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.