Home / 124,807.41-172,234.31-68,218.78

Finding the Fourth Proportional to 124,807.41, 172,234.31 and 68,218.78

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Solution

The fourth proportional to 124,807.41, 172,234.31 and 68,218.78 is: 94,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,807.41 : 172,234.31 = 68,218.78 : x
  2. Step 2: Convert to fraction form
    124,807.41/172,234.31 = 68,218.78/x
  3. Step 3: Cross multiply
    124,807.41x = 172,234.31 × 68,218.78
  4. Step 4: Simplify right side
    124,807.41x = 11,749,614,502.34
  5. Step 5: Solve for x
    x = 11,749,614,502.34/124,807.41
  6. Step 6: Final answer
    x = 94,141.96

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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.