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Finding the Fourth Proportional to 127,193.92, 175,530.34 and 72,751.05

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Solution

The fourth proportional to 127,193.92, 175,530.34 and 72,751.05 is: 100,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,193.92 : 175,530.34 = 72,751.05 : x
  2. Step 2: Convert to fraction form
    127,193.92/175,530.34 = 72,751.05/x
  3. Step 3: Cross multiply
    127,193.92x = 175,530.34 × 72,751.05
  4. Step 4: Simplify right side
    127,193.92x = 12,770,016,632.80
  5. Step 5: Solve for x
    x = 12,770,016,632.80/127,193.92
  6. Step 6: Final answer
    x = 100,398.01

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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.