Home / 252,114.30-347,916.60-138,936.78

Finding the Fourth Proportional to 252,114.30, 347,916.60 and 138,936.78

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Solution

The fourth proportional to 252,114.30, 347,916.60 and 138,936.78 is: 191,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,114.30 : 347,916.60 = 138,936.78 : x
  2. Step 2: Convert to fraction form
    252,114.30/347,916.60 = 138,936.78/x
  3. Step 3: Cross multiply
    252,114.30x = 347,916.60 × 138,936.78
  4. Step 4: Simplify right side
    252,114.30x = 48,338,412,112.55
  5. Step 5: Solve for x
    x = 48,338,412,112.55/252,114.30
  6. Step 6: Final answer
    x = 191,732.13

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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.