Home / 252,082.42-347,872.08-138,905.20

Finding the Fourth Proportional to 252,082.42, 347,872.08 and 138,905.20

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Solution

The fourth proportional to 252,082.42, 347,872.08 and 138,905.20 is: 191,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,082.42 : 347,872.08 = 138,905.20 : x
  2. Step 2: Convert to fraction form
    252,082.42/347,872.08 = 138,905.20/x
  3. Step 3: Cross multiply
    252,082.42x = 347,872.08 × 138,905.20
  4. Step 4: Simplify right side
    252,082.42x = 48,321,240,846.82
  5. Step 5: Solve for x
    x = 48,321,240,846.82/252,082.42
  6. Step 6: Final answer
    x = 191,688.26

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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.