Home / 138,059.24-206,818.21-71,543.00

Finding the Fourth Proportional to 138,059.24, 206,818.21 and 71,543.00

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Solution

The fourth proportional to 138,059.24, 206,818.21 and 71,543.00 is: 107,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,059.24 : 206,818.21 = 71,543.00 : x
  2. Step 2: Convert to fraction form
    138,059.24/206,818.21 = 71,543.00/x
  3. Step 3: Cross multiply
    138,059.24x = 206,818.21 × 71,543.00
  4. Step 4: Simplify right side
    138,059.24x = 14,796,394,641.15
  5. Step 5: Solve for x
    x = 14,796,394,641.15/138,059.24
  6. Step 6: Final answer
    x = 107,174.25

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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.