Home / 128,225.10-192,175.65-49,233.90

Finding the Fourth Proportional to 128,225.10, 192,175.65 and 49,233.90

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Solution

The fourth proportional to 128,225.10, 192,175.65 and 49,233.90 is: 73,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,225.10 : 192,175.65 = 49,233.90 : x
  2. Step 2: Convert to fraction form
    128,225.10/192,175.65 = 49,233.90/x
  3. Step 3: Cross multiply
    128,225.10x = 192,175.65 × 49,233.90
  4. Step 4: Simplify right side
    128,225.10x = 9,461,556,734.54
  5. Step 5: Solve for x
    x = 9,461,556,734.54/128,225.10
  6. Step 6: Final answer
    x = 73,788.65

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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.