Home / 125,216.22-172,803.96-71,505.54

Finding the Fourth Proportional to 125,216.22, 172,803.96 and 71,505.54

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Solution

The fourth proportional to 125,216.22, 172,803.96 and 71,505.54 is: 98,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.22 : 172,803.96 = 71,505.54 : x
  2. Step 2: Convert to fraction form
    125,216.22/172,803.96 = 71,505.54/x
  3. Step 3: Cross multiply
    125,216.22x = 172,803.96 × 71,505.54
  4. Step 4: Simplify right side
    125,216.22x = 12,356,440,473.94
  5. Step 5: Solve for x
    x = 12,356,440,473.94/125,216.22
  6. Step 6: Final answer
    x = 98,680.83

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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.