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Finding the Fourth Proportional to 125,089.28, 188,512.76 and 112,623.44

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Solution

The fourth proportional to 125,089.28, 188,512.76 and 112,623.44 is: 169,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,089.28 : 188,512.76 = 112,623.44 : x
  2. Step 2: Convert to fraction form
    125,089.28/188,512.76 = 112,623.44/x
  3. Step 3: Cross multiply
    125,089.28x = 188,512.76 × 112,623.44
  4. Step 4: Simplify right side
    125,089.28x = 21,230,955,515.09
  5. Step 5: Solve for x
    x = 21,230,955,515.09/125,089.28
  6. Step 6: Final answer
    x = 169,726.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.