Home / 148,842.62-205,404.23-80,860.10

Finding the Fourth Proportional to 148,842.62, 205,404.23 and 80,860.10

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Solution

The fourth proportional to 148,842.62, 205,404.23 and 80,860.10 is: 111,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,842.62 : 205,404.23 = 80,860.10 : x
  2. Step 2: Convert to fraction form
    148,842.62/205,404.23 = 80,860.10/x
  3. Step 3: Cross multiply
    148,842.62x = 205,404.23 × 80,860.10
  4. Step 4: Simplify right side
    148,842.62x = 16,609,006,578.22
  5. Step 5: Solve for x
    x = 16,609,006,578.22/148,842.62
  6. Step 6: Final answer
    x = 111,587.71

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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.