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Finding the Fourth Proportional to 127,140.84, 175,469.90 and 73,425.79

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Solution

The fourth proportional to 127,140.84, 175,469.90 and 73,425.79 is: 101,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.84 : 175,469.90 = 73,425.79 : x
  2. Step 2: Convert to fraction form
    127,140.84/175,469.90 = 73,425.79/x
  3. Step 3: Cross multiply
    127,140.84x = 175,469.90 × 73,425.79
  4. Step 4: Simplify right side
    127,140.84x = 12,884,015,880.93
  5. Step 5: Solve for x
    x = 12,884,015,880.93/127,140.84
  6. Step 6: Final answer
    x = 101,336.56

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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.