Home / 113,626.20-156,815.82-68,318.94

Finding the Fourth Proportional to 113,626.20, 156,815.82 and 68,318.94

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Solution

The fourth proportional to 113,626.20, 156,815.82 and 68,318.94 is: 94,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,626.20 : 156,815.82 = 68,318.94 : x
  2. Step 2: Convert to fraction form
    113,626.20/156,815.82 = 68,318.94/x
  3. Step 3: Cross multiply
    113,626.20x = 156,815.82 × 68,318.94
  4. Step 4: Simplify right side
    113,626.20x = 10,713,490,597.63
  5. Step 5: Solve for x
    x = 10,713,490,597.63/113,626.20
  6. Step 6: Final answer
    x = 94,287.15

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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.