Home / 127,175.28-175,502.64-79,456.38

Finding the Fourth Proportional to 127,175.28, 175,502.64 and 79,456.38

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Solution

The fourth proportional to 127,175.28, 175,502.64 and 79,456.38 is: 109,650.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,175.28 : 175,502.64 = 79,456.38 : x
  2. Step 2: Convert to fraction form
    127,175.28/175,502.64 = 79,456.38/x
  3. Step 3: Cross multiply
    127,175.28x = 175,502.64 × 79,456.38
  4. Step 4: Simplify right side
    127,175.28x = 13,944,804,454.84
  5. Step 5: Solve for x
    x = 13,944,804,454.84/127,175.28
  6. Step 6: Final answer
    x = 109,650.28

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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.