Home / 155,895.28-215,137.56-92,231.44

Finding the Fourth Proportional to 155,895.28, 215,137.56 and 92,231.44

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Solution

The fourth proportional to 155,895.28, 215,137.56 and 92,231.44 is: 127,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,895.28 : 215,137.56 = 92,231.44 : x
  2. Step 2: Convert to fraction form
    155,895.28/215,137.56 = 92,231.44/x
  3. Step 3: Cross multiply
    155,895.28x = 215,137.56 × 92,231.44
  4. Step 4: Simplify right side
    155,895.28x = 19,842,446,956.89
  5. Step 5: Solve for x
    x = 19,842,446,956.89/155,895.28
  6. Step 6: Final answer
    x = 127,280.61

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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.