Home / 123,713.82-170,728.38-67,125.15

Finding the Fourth Proportional to 123,713.82, 170,728.38 and 67,125.15

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Solution

The fourth proportional to 123,713.82, 170,728.38 and 67,125.15 is: 92,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,713.82 : 170,728.38 = 67,125.15 : x
  2. Step 2: Convert to fraction form
    123,713.82/170,728.38 = 67,125.15/x
  3. Step 3: Cross multiply
    123,713.82x = 170,728.38 × 67,125.15
  4. Step 4: Simplify right side
    123,713.82x = 11,460,168,116.76
  5. Step 5: Solve for x
    x = 11,460,168,116.76/123,713.82
  6. Step 6: Final answer
    x = 92,634.50

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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.