Home / 123,135.17-184,713.23-38,872.79

Finding the Fourth Proportional to 123,135.17, 184,713.23 and 38,872.79

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Solution

The fourth proportional to 123,135.17, 184,713.23 and 38,872.79 is: 58,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,135.17 : 184,713.23 = 38,872.79 : x
  2. Step 2: Convert to fraction form
    123,135.17/184,713.23 = 38,872.79/x
  3. Step 3: Cross multiply
    123,135.17x = 184,713.23 × 38,872.79
  4. Step 4: Simplify right side
    123,135.17x = 7,180,318,600.01
  5. Step 5: Solve for x
    x = 7,180,318,600.01/123,135.17
  6. Step 6: Final answer
    x = 58,312.49

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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.