Home / 256,091.12-384,157.20-69,099.92

Finding the Fourth Proportional to 256,091.12, 384,157.20 and 69,099.92

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Solution

The fourth proportional to 256,091.12, 384,157.20 and 69,099.92 is: 103,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,091.12 : 384,157.20 = 69,099.92 : x
  2. Step 2: Convert to fraction form
    256,091.12/384,157.20 = 69,099.92/x
  3. Step 3: Cross multiply
    256,091.12x = 384,157.20 × 69,099.92
  4. Step 4: Simplify right side
    256,091.12x = 26,545,231,787.42
  5. Step 5: Solve for x
    x = 26,545,231,787.42/256,091.12
  6. Step 6: Final answer
    x = 103,655.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.