Home / 132,747.29-183,189.13-72,318.66

Finding the Fourth Proportional to 132,747.29, 183,189.13 and 72,318.66

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Solution

The fourth proportional to 132,747.29, 183,189.13 and 72,318.66 is: 99,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,747.29 : 183,189.13 = 72,318.66 : x
  2. Step 2: Convert to fraction form
    132,747.29/183,189.13 = 72,318.66/x
  3. Step 3: Cross multiply
    132,747.29x = 183,189.13 × 72,318.66
  4. Step 4: Simplify right side
    132,747.29x = 13,247,991,540.41
  5. Step 5: Solve for x
    x = 13,247,991,540.41/132,747.29
  6. Step 6: Final answer
    x = 99,798.58

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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.