Home / 156,550.82-234,618.60-85,290.68

Finding the Fourth Proportional to 156,550.82, 234,618.60 and 85,290.68

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Solution

The fourth proportional to 156,550.82, 234,618.60 and 85,290.68 is: 127,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,550.82 : 234,618.60 = 85,290.68 : x
  2. Step 2: Convert to fraction form
    156,550.82/234,618.60 = 85,290.68/x
  3. Step 3: Cross multiply
    156,550.82x = 234,618.60 × 85,290.68
  4. Step 4: Simplify right side
    156,550.82x = 20,010,779,934.65
  5. Step 5: Solve for x
    x = 20,010,779,934.65/156,550.82
  6. Step 6: Final answer
    x = 127,822.90

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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.