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Finding the Fourth Proportional to 126,911.55, 175,134.12 and 69,550.17

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Solution

The fourth proportional to 126,911.55, 175,134.12 and 69,550.17 is: 95,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.55 : 175,134.12 = 69,550.17 : x
  2. Step 2: Convert to fraction form
    126,911.55/175,134.12 = 69,550.17/x
  3. Step 3: Cross multiply
    126,911.55x = 175,134.12 × 69,550.17
  4. Step 4: Simplify right side
    126,911.55x = 12,180,607,818.80
  5. Step 5: Solve for x
    x = 12,180,607,818.80/126,911.55
  6. Step 6: Final answer
    x = 95,977.14

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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.