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Finding the Fourth Proportional to 125,099.59, 172,630.59 and 73,409.76

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Solution

The fourth proportional to 125,099.59, 172,630.59 and 73,409.76 is: 101,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,099.59 : 172,630.59 = 73,409.76 : x
  2. Step 2: Convert to fraction form
    125,099.59/172,630.59 = 73,409.76/x
  3. Step 3: Cross multiply
    125,099.59x = 172,630.59 × 73,409.76
  4. Step 4: Simplify right side
    125,099.59x = 12,672,770,180.56
  5. Step 5: Solve for x
    x = 12,672,770,180.56/125,099.59
  6. Step 6: Final answer
    x = 101,301.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.