Home / 115,535.40-173,432.70-89,356.20

Finding the Fourth Proportional to 115,535.40, 173,432.70 and 89,356.20

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Solution

The fourth proportional to 115,535.40, 173,432.70 and 89,356.20 is: 134,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,535.40 : 173,432.70 = 89,356.20 : x
  2. Step 2: Convert to fraction form
    115,535.40/173,432.70 = 89,356.20/x
  3. Step 3: Cross multiply
    115,535.40x = 173,432.70 × 89,356.20
  4. Step 4: Simplify right side
    115,535.40x = 15,497,287,027.74
  5. Step 5: Solve for x
    x = 15,497,287,027.74/115,535.40
  6. Step 6: Final answer
    x = 134,134.53

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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.