Home / 148,668.22-205,162.25-80,685.17

Finding the Fourth Proportional to 148,668.22, 205,162.25 and 80,685.17

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Solution

The fourth proportional to 148,668.22, 205,162.25 and 80,685.17 is: 111,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,668.22 : 205,162.25 = 80,685.17 : x
  2. Step 2: Convert to fraction form
    148,668.22/205,162.25 = 80,685.17/x
  3. Step 3: Cross multiply
    148,668.22x = 205,162.25 × 80,685.17
  4. Step 4: Simplify right side
    148,668.22x = 16,553,551,128.31
  5. Step 5: Solve for x
    x = 16,553,551,128.31/148,668.22
  6. Step 6: Final answer
    x = 111,345.59

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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.