Home / 123,340.15-170,209.92-66,751.52

Finding the Fourth Proportional to 123,340.15, 170,209.92 and 66,751.52

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Solution

The fourth proportional to 123,340.15, 170,209.92 and 66,751.52 is: 92,117.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.15 : 170,209.92 = 66,751.52 : x
  2. Step 2: Convert to fraction form
    123,340.15/170,209.92 = 66,751.52/x
  3. Step 3: Cross multiply
    123,340.15x = 170,209.92 × 66,751.52
  4. Step 4: Simplify right side
    123,340.15x = 11,361,770,879.08
  5. Step 5: Solve for x
    x = 11,361,770,879.08/123,340.15
  6. Step 6: Final answer
    x = 92,117.38

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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.