Home / 96,148.90-132,721.98-72,344.78

Finding the Fourth Proportional to 96,148.90, 132,721.98 and 72,344.78

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Solution

The fourth proportional to 96,148.90, 132,721.98 and 72,344.78 is: 99,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,148.90 : 132,721.98 = 72,344.78 : x
  2. Step 2: Convert to fraction form
    96,148.90/132,721.98 = 72,344.78/x
  3. Step 3: Cross multiply
    96,148.90x = 132,721.98 × 72,344.78
  4. Step 4: Simplify right side
    96,148.90x = 9,601,742,444.26
  5. Step 5: Solve for x
    x = 9,601,742,444.26/96,148.90
  6. Step 6: Final answer
    x = 99,863.26

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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.