Home / 155,881.10-215,115.91-113,475.17

Finding the Fourth Proportional to 155,881.10, 215,115.91 and 113,475.17

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Solution

The fourth proportional to 155,881.10, 215,115.91 and 113,475.17 is: 156,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,881.10 : 215,115.91 = 113,475.17 : x
  2. Step 2: Convert to fraction form
    155,881.10/215,115.91 = 113,475.17/x
  3. Step 3: Cross multiply
    155,881.10x = 215,115.91 × 113,475.17
  4. Step 4: Simplify right side
    155,881.10x = 24,410,314,456.95
  5. Step 5: Solve for x
    x = 24,410,314,456.95/155,881.10
  6. Step 6: Final answer
    x = 156,595.73

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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.