Home / 125,959.32-173,979.90-91,449

Finding the Fourth Proportional to 125,959.32, 173,979.90 and 91,449

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Solution

The fourth proportional to 125,959.32, 173,979.90 and 91,449 is: 126,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,959.32 : 173,979.90 = 91,449 : x
  2. Step 2: Convert to fraction form
    125,959.32/173,979.90 = 91,449/x
  3. Step 3: Cross multiply
    125,959.32x = 173,979.90 × 91,449
  4. Step 4: Simplify right side
    125,959.32x = 15,910,287,875.10
  5. Step 5: Solve for x
    x = 15,910,287,875.10/125,959.32
  6. Step 6: Final answer
    x = 126,312.91

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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.