Home / 131,642.85-181,667.17-74,294.40

Finding the Fourth Proportional to 131,642.85, 181,667.17 and 74,294.40

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Solution

The fourth proportional to 131,642.85, 181,667.17 and 74,294.40 is: 102,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,642.85 : 181,667.17 = 74,294.40 : x
  2. Step 2: Convert to fraction form
    131,642.85/181,667.17 = 74,294.40/x
  3. Step 3: Cross multiply
    131,642.85x = 181,667.17 × 74,294.40
  4. Step 4: Simplify right side
    131,642.85x = 13,496,853,394.85
  5. Step 5: Solve for x
    x = 13,496,853,394.85/131,642.85
  6. Step 6: Final answer
    x = 102,526.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.