Home / 125,199.73-172,780.05-68,611.11

Finding the Fourth Proportional to 125,199.73, 172,780.05 and 68,611.11

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Solution

The fourth proportional to 125,199.73, 172,780.05 and 68,611.11 is: 94,685.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,199.73 : 172,780.05 = 68,611.11 : x
  2. Step 2: Convert to fraction form
    125,199.73/172,780.05 = 68,611.11/x
  3. Step 3: Cross multiply
    125,199.73x = 172,780.05 × 68,611.11
  4. Step 4: Simplify right side
    125,199.73x = 11,854,631,016.36
  5. Step 5: Solve for x
    x = 11,854,631,016.36/125,199.73
  6. Step 6: Final answer
    x = 94,685.76

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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.