Home / 127,101.89-175,406.11-76,122.92

Finding the Fourth Proportional to 127,101.89, 175,406.11 and 76,122.92

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Solution

The fourth proportional to 127,101.89, 175,406.11 and 76,122.92 is: 105,052.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.89 : 175,406.11 = 76,122.92 : x
  2. Step 2: Convert to fraction form
    127,101.89/175,406.11 = 76,122.92/x
  3. Step 3: Cross multiply
    127,101.89x = 175,406.11 × 76,122.92
  4. Step 4: Simplify right side
    127,101.89x = 13,352,425,527.25
  5. Step 5: Solve for x
    x = 13,352,425,527.25/127,101.89
  6. Step 6: Final answer
    x = 105,052.92

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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.