Home / 127,639.20-191,531.70-88,224.60

Finding the Fourth Proportional to 127,639.20, 191,531.70 and 88,224.60

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Solution

The fourth proportional to 127,639.20, 191,531.70 and 88,224.60 is: 132,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639.20 : 191,531.70 = 88,224.60 : x
  2. Step 2: Convert to fraction form
    127,639.20/191,531.70 = 88,224.60/x
  3. Step 3: Cross multiply
    127,639.20x = 191,531.70 × 88,224.60
  4. Step 4: Simplify right side
    127,639.20x = 16,897,807,619.82
  5. Step 5: Solve for x
    x = 16,897,807,619.82/127,639.20
  6. Step 6: Final answer
    x = 132,387.29

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1.5x scale

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.