Home / 136,153.52-187,864.05-79,553.96

Finding the Fourth Proportional to 136,153.52, 187,864.05 and 79,553.96

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Solution

The fourth proportional to 136,153.52, 187,864.05 and 79,553.96 is: 109,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,153.52 : 187,864.05 = 79,553.96 : x
  2. Step 2: Convert to fraction form
    136,153.52/187,864.05 = 79,553.96/x
  3. Step 3: Cross multiply
    136,153.52x = 187,864.05 × 79,553.96
  4. Step 4: Simplify right side
    136,153.52x = 14,945,329,119.14
  5. Step 5: Solve for x
    x = 14,945,329,119.14/136,153.52
  6. Step 6: Final answer
    x = 109,768.22

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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.