Home / 115,912.10-173,868.15-89,635.70

Finding the Fourth Proportional to 115,912.10, 173,868.15 and 89,635.70

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Solution

The fourth proportional to 115,912.10, 173,868.15 and 89,635.70 is: 134,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,912.10 : 173,868.15 = 89,635.70 : x
  2. Step 2: Convert to fraction form
    115,912.10/173,868.15 = 89,635.70/x
  3. Step 3: Cross multiply
    115,912.10x = 173,868.15 × 89,635.70
  4. Step 4: Simplify right side
    115,912.10x = 15,584,793,332.96
  5. Step 5: Solve for x
    x = 15,584,793,332.96/115,912.10
  6. Step 6: Final answer
    x = 134,453.55

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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.