Home / 125,728.88-173,510.56-75,418.16

Finding the Fourth Proportional to 125,728.88, 173,510.56 and 75,418.16

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Solution

The fourth proportional to 125,728.88, 173,510.56 and 75,418.16 is: 104,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,728.88 : 173,510.56 = 75,418.16 : x
  2. Step 2: Convert to fraction form
    125,728.88/173,510.56 = 75,418.16/x
  3. Step 3: Cross multiply
    125,728.88x = 173,510.56 × 75,418.16
  4. Step 4: Simplify right side
    125,728.88x = 13,085,847,175.77
  5. Step 5: Solve for x
    x = 13,085,847,175.77/125,728.88
  6. Step 6: Final answer
    x = 104,079.88

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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.