Home / 123,342.06-170,212.20-66,753.42

Finding the Fourth Proportional to 123,342.06, 170,212.20 and 66,753.42

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Solution

The fourth proportional to 123,342.06, 170,212.20 and 66,753.42 is: 92,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,342.06 : 170,212.20 = 66,753.42 : x
  2. Step 2: Convert to fraction form
    123,342.06/170,212.20 = 66,753.42/x
  3. Step 3: Cross multiply
    123,342.06x = 170,212.20 × 66,753.42
  4. Step 4: Simplify right side
    123,342.06x = 11,362,246,475.72
  5. Step 5: Solve for x
    x = 11,362,246,475.72/123,342.06
  6. Step 6: Final answer
    x = 92,119.80

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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.