Home / 115,432.50-159,387.02-88,532.40

Finding the Fourth Proportional to 115,432.50, 159,387.02 and 88,532.40

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Solution

The fourth proportional to 115,432.50, 159,387.02 and 88,532.40 is: 122,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,432.50 : 159,387.02 = 88,532.40 : x
  2. Step 2: Convert to fraction form
    115,432.50/159,387.02 = 88,532.40/x
  3. Step 3: Cross multiply
    115,432.50x = 159,387.02 × 88,532.40
  4. Step 4: Simplify right side
    115,432.50x = 14,110,915,409.45
  5. Step 5: Solve for x
    x = 14,110,915,409.45/115,432.50
  6. Step 6: Final answer
    x = 122,243.87

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1.5x scale

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.