Home / 123,239.24-170,070.26-66,650.61

Finding the Fourth Proportional to 123,239.24, 170,070.26 and 66,650.61

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Solution

The fourth proportional to 123,239.24, 170,070.26 and 66,650.61 is: 91,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,239.24 : 170,070.26 = 66,650.61 : x
  2. Step 2: Convert to fraction form
    123,239.24/170,070.26 = 66,650.61/x
  3. Step 3: Cross multiply
    123,239.24x = 170,070.26 × 66,650.61
  4. Step 4: Simplify right side
    123,239.24x = 11,335,287,334.59
  5. Step 5: Solve for x
    x = 11,335,287,334.59/123,239.24
  6. Step 6: Final answer
    x = 91,977.91

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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.