Home / 138,531.28-191,084.52-96,074.32

Finding the Fourth Proportional to 138,531.28, 191,084.52 and 96,074.32

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Solution

The fourth proportional to 138,531.28, 191,084.52 and 96,074.32 is: 132,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,531.28 : 191,084.52 = 96,074.32 : x
  2. Step 2: Convert to fraction form
    138,531.28/191,084.52 = 96,074.32/x
  3. Step 3: Cross multiply
    138,531.28x = 191,084.52 × 96,074.32
  4. Step 4: Simplify right side
    138,531.28x = 18,358,315,321.53
  5. Step 5: Solve for x
    x = 18,358,315,321.53/138,531.28
  6. Step 6: Final answer
    x = 132,521.08

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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.