Home / 115,335.40-173,132.70-89,156.20

Finding the Fourth Proportional to 115,335.40, 173,132.70 and 89,156.20

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Solution

The fourth proportional to 115,335.40, 173,132.70 and 89,156.20 is: 133,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.40 : 173,132.70 = 89,156.20 : x
  2. Step 2: Convert to fraction form
    115,335.40/173,132.70 = 89,156.20/x
  3. Step 3: Cross multiply
    115,335.40x = 173,132.70 × 89,156.20
  4. Step 4: Simplify right side
    115,335.40x = 15,435,853,627.74
  5. Step 5: Solve for x
    x = 15,435,853,627.74/115,335.40
  6. Step 6: Final answer
    x = 133,834.48

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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.