Home / 129,082.78-193,547.62-49,126.78

Finding the Fourth Proportional to 129,082.78, 193,547.62 and 49,126.78

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Solution

The fourth proportional to 129,082.78, 193,547.62 and 49,126.78 is: 73,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,082.78 : 193,547.62 = 49,126.78 : x
  2. Step 2: Convert to fraction form
    129,082.78/193,547.62 = 49,126.78/x
  3. Step 3: Cross multiply
    129,082.78x = 193,547.62 × 49,126.78
  4. Step 4: Simplify right side
    129,082.78x = 9,508,371,347.26
  5. Step 5: Solve for x
    x = 9,508,371,347.26/129,082.78
  6. Step 6: Final answer
    x = 73,661.04

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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.