Home / 115,330.40-173,125.20-89,151.20

Finding the Fourth Proportional to 115,330.40, 173,125.20 and 89,151.20

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Solution

The fourth proportional to 115,330.40, 173,125.20 and 89,151.20 is: 133,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,330.40 : 173,125.20 = 89,151.20 : x
  2. Step 2: Convert to fraction form
    115,330.40/173,125.20 = 89,151.20/x
  3. Step 3: Cross multiply
    115,330.40x = 173,125.20 × 89,151.20
  4. Step 4: Simplify right side
    115,330.40x = 15,434,319,330.24
  5. Step 5: Solve for x
    x = 15,434,319,330.24/115,330.40
  6. Step 6: Final answer
    x = 133,826.98

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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.