Home / 109,982.29-151,590.54-84,131.95

Finding the Fourth Proportional to 109,982.29, 151,590.54 and 84,131.95

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Solution

The fourth proportional to 109,982.29, 151,590.54 and 84,131.95 is: 115,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,982.29 : 151,590.54 = 84,131.95 : x
  2. Step 2: Convert to fraction form
    109,982.29/151,590.54 = 84,131.95/x
  3. Step 3: Cross multiply
    109,982.29x = 151,590.54 × 84,131.95
  4. Step 4: Simplify right side
    109,982.29x = 12,753,607,731.75
  5. Step 5: Solve for x
    x = 12,753,607,731.75/109,982.29
  6. Step 6: Final answer
    x = 115,960.56

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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.