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Finding the Fourth Proportional to 188,158.92, 282,281.44 and 81,560.72

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Solution

The fourth proportional to 188,158.92, 282,281.44 and 81,560.72 is: 122,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,158.92 : 282,281.44 = 81,560.72 : x
  2. Step 2: Convert to fraction form
    188,158.92/282,281.44 = 81,560.72/x
  3. Step 3: Cross multiply
    188,158.92x = 282,281.44 × 81,560.72
  4. Step 4: Simplify right side
    188,158.92x = 23,023,077,489.04
  5. Step 5: Solve for x
    x = 23,023,077,489.04/188,158.92
  6. Step 6: Final answer
    x = 122,359.75

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1.5x scale

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.