Home / 125,227.12-172,816.80-68,640.64

Finding the Fourth Proportional to 125,227.12, 172,816.80 and 68,640.64

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Solution

The fourth proportional to 125,227.12, 172,816.80 and 68,640.64 is: 94,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,227.12 : 172,816.80 = 68,640.64 : x
  2. Step 2: Convert to fraction form
    125,227.12/172,816.80 = 68,640.64/x
  3. Step 3: Cross multiply
    125,227.12x = 172,816.80 × 68,640.64
  4. Step 4: Simplify right side
    125,227.12x = 11,862,255,754.75
  5. Step 5: Solve for x
    x = 11,862,255,754.75/125,227.12
  6. Step 6: Final answer
    x = 94,725.93

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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.