Home / 252,121.52-347,921.28-137,403.11

Finding the Fourth Proportional to 252,121.52, 347,921.28 and 137,403.11

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Solution

The fourth proportional to 252,121.52, 347,921.28 and 137,403.11 is: 189,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,121.52 : 347,921.28 = 137,403.11 : x
  2. Step 2: Convert to fraction form
    252,121.52/347,921.28 = 137,403.11/x
  3. Step 3: Cross multiply
    252,121.52x = 347,921.28 × 137,403.11
  4. Step 4: Simplify right side
    252,121.52x = 47,805,465,907.18
  5. Step 5: Solve for x
    x = 47,805,465,907.18/252,121.52
  6. Step 6: Final answer
    x = 189,612.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.