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Finding the Fourth Proportional to 123,425.39, 185,119.16 and 39,174.63

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Solution

The fourth proportional to 123,425.39, 185,119.16 and 39,174.63 is: 58,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,425.39 : 185,119.16 = 39,174.63 : x
  2. Step 2: Convert to fraction form
    123,425.39/185,119.16 = 39,174.63/x
  3. Step 3: Cross multiply
    123,425.39x = 185,119.16 × 39,174.63
  4. Step 4: Simplify right side
    123,425.39x = 7,251,974,403.04
  5. Step 5: Solve for x
    x = 7,251,974,403.04/123,425.39
  6. Step 6: Final answer
    x = 58,755.94

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1.5x scale

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.