Home / 252,115.76-347,927.04-138,945.80

Finding the Fourth Proportional to 252,115.76, 347,927.04 and 138,945.80

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Solution

The fourth proportional to 252,115.76, 347,927.04 and 138,945.80 is: 191,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,115.76 : 347,927.04 = 138,945.80 : x
  2. Step 2: Convert to fraction form
    252,115.76/347,927.04 = 138,945.80/x
  3. Step 3: Cross multiply
    252,115.76x = 347,927.04 × 138,945.80
  4. Step 4: Simplify right side
    252,115.76x = 48,343,000,914.43
  5. Step 5: Solve for x
    x = 48,343,000,914.43/252,115.76
  6. Step 6: Final answer
    x = 191,749.22

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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.