Home / 125,250.31-172,856.37-68,672.62

Finding the Fourth Proportional to 125,250.31, 172,856.37 and 68,672.62

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Solution

The fourth proportional to 125,250.31, 172,856.37 and 68,672.62 is: 94,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,250.31 : 172,856.37 = 68,672.62 : x
  2. Step 2: Convert to fraction form
    125,250.31/172,856.37 = 68,672.62/x
  3. Step 3: Cross multiply
    125,250.31x = 172,856.37 × 68,672.62
  4. Step 4: Simplify right side
    125,250.31x = 11,870,499,811.59
  5. Step 5: Solve for x
    x = 11,870,499,811.59/125,250.31
  6. Step 6: Final answer
    x = 94,774.22

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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.