Home / 148,677.51-205,175.15-80,694.47

Finding the Fourth Proportional to 148,677.51, 205,175.15 and 80,694.47

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Solution

The fourth proportional to 148,677.51, 205,175.15 and 80,694.47 is: 111,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,677.51 : 205,175.15 = 80,694.47 : x
  2. Step 2: Convert to fraction form
    148,677.51/205,175.15 = 80,694.47/x
  3. Step 3: Cross multiply
    148,677.51x = 205,175.15 × 80,694.47
  4. Step 4: Simplify right side
    148,677.51x = 16,556,500,166.70
  5. Step 5: Solve for x
    x = 16,556,500,166.70/148,677.51
  6. Step 6: Final answer
    x = 111,358.47

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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.