Home / 252,122.55-347,929.12-138,945.30

Finding the Fourth Proportional to 252,122.55, 347,929.12 and 138,945.30

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Solution

The fourth proportional to 252,122.55, 347,929.12 and 138,945.30 is: 191,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,122.55 : 347,929.12 = 138,945.30 : x
  2. Step 2: Convert to fraction form
    252,122.55/347,929.12 = 138,945.30/x
  3. Step 3: Cross multiply
    252,122.55x = 347,929.12 × 138,945.30
  4. Step 4: Simplify right side
    252,122.55x = 48,343,115,957.14
  5. Step 5: Solve for x
    x = 48,343,115,957.14/252,122.55
  6. Step 6: Final answer
    x = 191,744.51

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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.