Home / 252,122.78-347,929.46-138,945.53

Finding the Fourth Proportional to 252,122.78, 347,929.46 and 138,945.53

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Solution

The fourth proportional to 252,122.78, 347,929.46 and 138,945.53 is: 191,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,122.78 : 347,929.46 = 138,945.53 : x
  2. Step 2: Convert to fraction form
    252,122.78/347,929.46 = 138,945.53/x
  3. Step 3: Cross multiply
    252,122.78x = 347,929.46 × 138,945.53
  4. Step 4: Simplify right side
    252,122.78x = 48,343,243,222.31
  5. Step 5: Solve for x
    x = 48,343,243,222.31/252,122.78
  6. Step 6: Final answer
    x = 191,744.84

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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.