Home / 133,229.78-183,862.45-76,641.14

Finding the Fourth Proportional to 133,229.78, 183,862.45 and 76,641.14

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Solution

The fourth proportional to 133,229.78, 183,862.45 and 76,641.14 is: 105,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,229.78 : 183,862.45 = 76,641.14 : x
  2. Step 2: Convert to fraction form
    133,229.78/183,862.45 = 76,641.14/x
  3. Step 3: Cross multiply
    133,229.78x = 183,862.45 × 76,641.14
  4. Step 4: Simplify right side
    133,229.78x = 14,091,427,771.19
  5. Step 5: Solve for x
    x = 14,091,427,771.19/133,229.78
  6. Step 6: Final answer
    x = 105,767.85

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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.