Home / 252,111.75-347,921.52-138,941.79

Finding the Fourth Proportional to 252,111.75, 347,921.52 and 138,941.79

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Solution

The fourth proportional to 252,111.75, 347,921.52 and 138,941.79 is: 191,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,111.75 : 347,921.52 = 138,941.79 : x
  2. Step 2: Convert to fraction form
    252,111.75/347,921.52 = 138,941.79/x
  3. Step 3: Cross multiply
    252,111.75x = 347,921.52 × 138,941.79
  4. Step 4: Simplify right side
    252,111.75x = 48,340,838,768.32
  5. Step 5: Solve for x
    x = 48,340,838,768.32/252,111.75
  6. Step 6: Final answer
    x = 191,743.70

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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.