Home / 129,502.49-194,280.09-54,622.90

Finding the Fourth Proportional to 129,502.49, 194,280.09 and 54,622.90

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Solution

The fourth proportional to 129,502.49, 194,280.09 and 54,622.90 is: 81,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,502.49 : 194,280.09 = 54,622.90 : x
  2. Step 2: Convert to fraction form
    129,502.49/194,280.09 = 54,622.90/x
  3. Step 3: Cross multiply
    129,502.49x = 194,280.09 × 54,622.90
  4. Step 4: Simplify right side
    129,502.49x = 10,612,141,654.95
  5. Step 5: Solve for x
    x = 10,612,141,654.95/129,502.49
  6. Step 6: Final answer
    x = 81,945.46

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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.