Home / 123,239.56-170,070.60-66,650.92

Finding the Fourth Proportional to 123,239.56, 170,070.60 and 66,650.92

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Solution

The fourth proportional to 123,239.56, 170,070.60 and 66,650.92 is: 91,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,239.56 : 170,070.60 = 66,650.92 : x
  2. Step 2: Convert to fraction form
    123,239.56/170,070.60 = 66,650.92/x
  3. Step 3: Cross multiply
    123,239.56x = 170,070.60 × 66,650.92
  4. Step 4: Simplify right side
    123,239.56x = 11,335,361,954.95
  5. Step 5: Solve for x
    x = 11,335,361,954.95/123,239.56
  6. Step 6: Final answer
    x = 91,978.27

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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.