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Finding the Fourth Proportional to 126,473.68, 174,550.98 and 72,757.72

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Solution

The fourth proportional to 126,473.68, 174,550.98 and 72,757.72 is: 100,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,473.68 : 174,550.98 = 72,757.72 : x
  2. Step 2: Convert to fraction form
    126,473.68/174,550.98 = 72,757.72/x
  3. Step 3: Cross multiply
    126,473.68x = 174,550.98 × 72,757.72
  4. Step 4: Simplify right side
    126,473.68x = 12,699,931,328.57
  5. Step 5: Solve for x
    x = 12,699,931,328.57/126,473.68
  6. Step 6: Final answer
    x = 100,415.61

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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.