Home / 129,024-193,397.76-54,125.28

Finding the Fourth Proportional to 129,024, 193,397.76 and 54,125.28

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Solution

The fourth proportional to 129,024, 193,397.76 and 54,125.28 is: 81,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024 : 193,397.76 = 54,125.28 : x
  2. Step 2: Convert to fraction form
    129,024/193,397.76 = 54,125.28/x
  3. Step 3: Cross multiply
    129,024x = 193,397.76 × 54,125.28
  4. Step 4: Simplify right side
    129,024x = 10,467,707,911.37
  5. Step 5: Solve for x
    x = 10,467,707,911.37/129,024
  6. Step 6: Final answer
    x = 81,129.93

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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.