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Finding the Fourth Proportional to 132,090, 182,163.90 and 111,714.75

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Solution

The fourth proportional to 132,090, 182,163.90 and 111,714.75 is: 154,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,090 : 182,163.90 = 111,714.75 : x
  2. Step 2: Convert to fraction form
    132,090/182,163.90 = 111,714.75/x
  3. Step 3: Cross multiply
    132,090x = 182,163.90 × 111,714.75
  4. Step 4: Simplify right side
    132,090x = 20,350,394,547.53
  5. Step 5: Solve for x
    x = 20,350,394,547.53/132,090
  6. Step 6: Final answer
    x = 154,064.61

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1.5x scale

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.