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Finding the Fourth Proportional to 126,381.60, 189,491.40 and 59,734.80

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Solution

The fourth proportional to 126,381.60, 189,491.40 and 59,734.80 is: 89,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,381.60 : 189,491.40 = 59,734.80 : x
  2. Step 2: Convert to fraction form
    126,381.60/189,491.40 = 59,734.80/x
  3. Step 3: Cross multiply
    126,381.60x = 189,491.40 × 59,734.80
  4. Step 4: Simplify right side
    126,381.60x = 11,319,230,880.72
  5. Step 5: Solve for x
    x = 11,319,230,880.72/126,381.60
  6. Step 6: Final answer
    x = 89,563.92

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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.