Home / 127,187.90-175,519.98-79,468.92

Finding the Fourth Proportional to 127,187.90, 175,519.98 and 79,468.92

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Solution

The fourth proportional to 127,187.90, 175,519.98 and 79,468.92 is: 109,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,187.90 : 175,519.98 = 79,468.92 : x
  2. Step 2: Convert to fraction form
    127,187.90/175,519.98 = 79,468.92/x
  3. Step 3: Cross multiply
    127,187.90x = 175,519.98 × 79,468.92
  4. Step 4: Simplify right side
    127,187.90x = 13,948,383,249.02
  5. Step 5: Solve for x
    x = 13,948,383,249.02/127,187.90
  6. Step 6: Final answer
    x = 109,667.53

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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.