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Finding the Fourth Proportional to 126,771.92, 174,938.59 and 69,400.25

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Solution

The fourth proportional to 126,771.92, 174,938.59 and 69,400.25 is: 95,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,771.92 : 174,938.59 = 69,400.25 : x
  2. Step 2: Convert to fraction form
    126,771.92/174,938.59 = 69,400.25/x
  3. Step 3: Cross multiply
    126,771.92x = 174,938.59 × 69,400.25
  4. Step 4: Simplify right side
    126,771.92x = 12,140,781,880.65
  5. Step 5: Solve for x
    x = 12,140,781,880.65/126,771.92
  6. Step 6: Final answer
    x = 95,768.70

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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.