Home / 138,411.18-206,858.30-101,049.93

Finding the Fourth Proportional to 138,411.18, 206,858.30 and 101,049.93

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Solution

The fourth proportional to 138,411.18, 206,858.30 and 101,049.93 is: 151,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,411.18 : 206,858.30 = 101,049.93 : x
  2. Step 2: Convert to fraction form
    138,411.18/206,858.30 = 101,049.93/x
  3. Step 3: Cross multiply
    138,411.18x = 206,858.30 × 101,049.93
  4. Step 4: Simplify right side
    138,411.18x = 20,903,016,229.67
  5. Step 5: Solve for x
    x = 20,903,016,229.67/138,411.18
  6. Step 6: Final answer
    x = 151,021.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.