Home / 123,279.22-170,125.50-66,690.46

Finding the Fourth Proportional to 123,279.22, 170,125.50 and 66,690.46

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Solution

The fourth proportional to 123,279.22, 170,125.50 and 66,690.46 is: 92,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,279.22 : 170,125.50 = 66,690.46 : x
  2. Step 2: Convert to fraction form
    123,279.22/170,125.50 = 66,690.46/x
  3. Step 3: Cross multiply
    123,279.22x = 170,125.50 × 66,690.46
  4. Step 4: Simplify right side
    123,279.22x = 11,345,747,852.73
  5. Step 5: Solve for x
    x = 11,345,747,852.73/123,279.22
  6. Step 6: Final answer
    x = 92,032.93

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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.