Home / 120,032.30-179,988.45-40,042.42

Finding the Fourth Proportional to 120,032.30, 179,988.45 and 40,042.42

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Solution

The fourth proportional to 120,032.30, 179,988.45 and 40,042.42 is: 60,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,032.30 : 179,988.45 = 40,042.42 : x
  2. Step 2: Convert to fraction form
    120,032.30/179,988.45 = 40,042.42/x
  3. Step 3: Cross multiply
    120,032.30x = 179,988.45 × 40,042.42
  4. Step 4: Simplify right side
    120,032.30x = 7,207,172,735.16
  5. Step 5: Solve for x
    x = 7,207,172,735.16/120,032.30
  6. Step 6: Final answer
    x = 60,043.61

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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.