Home / 137,278.47-206,050.86-66,251.09

Finding the Fourth Proportional to 137,278.47, 206,050.86 and 66,251.09

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Solution

The fourth proportional to 137,278.47, 206,050.86 and 66,251.09 is: 99,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,278.47 : 206,050.86 = 66,251.09 : x
  2. Step 2: Convert to fraction form
    137,278.47/206,050.86 = 66,251.09/x
  3. Step 3: Cross multiply
    137,278.47x = 206,050.86 × 66,251.09
  4. Step 4: Simplify right side
    137,278.47x = 13,651,094,070.44
  5. Step 5: Solve for x
    x = 13,651,094,070.44/137,278.47
  6. Step 6: Final answer
    x = 99,440.90

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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.