Home / 125,519.32-173,120.68-85,264.12

Finding the Fourth Proportional to 125,519.32, 173,120.68 and 85,264.12

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Solution

The fourth proportional to 125,519.32, 173,120.68 and 85,264.12 is: 117,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,519.32 : 173,120.68 = 85,264.12 : x
  2. Step 2: Convert to fraction form
    125,519.32/173,120.68 = 85,264.12/x
  3. Step 3: Cross multiply
    125,519.32x = 173,120.68 × 85,264.12
  4. Step 4: Simplify right side
    125,519.32x = 14,760,982,434.00
  5. Step 5: Solve for x
    x = 14,760,982,434.00/125,519.32
  6. Step 6: Final answer
    x = 117,599.29

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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.