Home / 137,512.80-206,243.28-67,347.36

Finding the Fourth Proportional to 137,512.80, 206,243.28 and 67,347.36

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Solution

The fourth proportional to 137,512.80, 206,243.28 and 67,347.36 is: 101,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,512.80 : 206,243.28 = 67,347.36 : x
  2. Step 2: Convert to fraction form
    137,512.80/206,243.28 = 67,347.36/x
  3. Step 3: Cross multiply
    137,512.80x = 206,243.28 × 67,347.36
  4. Step 4: Simplify right side
    137,512.80x = 13,889,940,425.74
  5. Step 5: Solve for x
    x = 13,889,940,425.74/137,512.80
  6. Step 6: Final answer
    x = 101,008.35

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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.