Home / 137,659.18-206,564-53,422.66

Finding the Fourth Proportional to 137,659.18, 206,564 and 53,422.66

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Solution

The fourth proportional to 137,659.18, 206,564 and 53,422.66 is: 80,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,659.18 : 206,564 = 53,422.66 : x
  2. Step 2: Convert to fraction form
    137,659.18/206,564 = 53,422.66/x
  3. Step 3: Cross multiply
    137,659.18x = 206,564 × 53,422.66
  4. Step 4: Simplify right side
    137,659.18x = 11,035,198,340.24
  5. Step 5: Solve for x
    x = 11,035,198,340.24/137,659.18
  6. Step 6: Final answer
    x = 80,163.19

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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.