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Finding the Fourth Proportional to 115,373.88, 173,122.38 and 45,253.80

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Solution

The fourth proportional to 115,373.88, 173,122.38 and 45,253.80 is: 67,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,373.88 : 173,122.38 = 45,253.80 : x
  2. Step 2: Convert to fraction form
    115,373.88/173,122.38 = 45,253.80/x
  3. Step 3: Cross multiply
    115,373.88x = 173,122.38 × 45,253.80
  4. Step 4: Simplify right side
    115,373.88x = 7,834,445,560.04
  5. Step 5: Solve for x
    x = 7,834,445,560.04/115,373.88
  6. Step 6: Final answer
    x = 67,904.85

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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.