Home / 138,116.72-207,208.76-48,146.96

Finding the Fourth Proportional to 138,116.72, 207,208.76 and 48,146.96

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Solution

The fourth proportional to 138,116.72, 207,208.76 and 48,146.96 is: 72,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,116.72 : 207,208.76 = 48,146.96 : x
  2. Step 2: Convert to fraction form
    138,116.72/207,208.76 = 48,146.96/x
  3. Step 3: Cross multiply
    138,116.72x = 207,208.76 × 48,146.96
  4. Step 4: Simplify right side
    138,116.72x = 9,976,471,879.37
  5. Step 5: Solve for x
    x = 9,976,471,879.37/138,116.72
  6. Step 6: Final answer
    x = 72,232.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.