Home / 132,387.48-198,469.58-57,451.28

Finding the Fourth Proportional to 132,387.48, 198,469.58 and 57,451.28

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Solution

The fourth proportional to 132,387.48, 198,469.58 and 57,451.28 is: 86,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,387.48 : 198,469.58 = 57,451.28 : x
  2. Step 2: Convert to fraction form
    132,387.48/198,469.58 = 57,451.28/x
  3. Step 3: Cross multiply
    132,387.48x = 198,469.58 × 57,451.28
  4. Step 4: Simplify right side
    132,387.48x = 11,402,330,132.46
  5. Step 5: Solve for x
    x = 11,402,330,132.46/132,387.48
  6. Step 6: Final answer
    x = 86,128.46

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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.