Home / 123,328.24-170,192.96-66,739.61

Finding the Fourth Proportional to 123,328.24, 170,192.96 and 66,739.61

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Solution

The fourth proportional to 123,328.24, 170,192.96 and 66,739.61 is: 92,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,328.24 : 170,192.96 = 66,739.61 : x
  2. Step 2: Convert to fraction form
    123,328.24/170,192.96 = 66,739.61/x
  3. Step 3: Cross multiply
    123,328.24x = 170,192.96 × 66,739.61
  4. Step 4: Simplify right side
    123,328.24x = 11,358,612,367.48
  5. Step 5: Solve for x
    x = 11,358,612,367.48/123,328.24
  6. Step 6: Final answer
    x = 92,100.66

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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.