Home / 123,724.97-170,740.91-67,136.34

Finding the Fourth Proportional to 123,724.97, 170,740.91 and 67,136.34

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Solution

The fourth proportional to 123,724.97, 170,740.91 and 67,136.34 is: 92,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,724.97 : 170,740.91 = 67,136.34 : x
  2. Step 2: Convert to fraction form
    123,724.97/170,740.91 = 67,136.34/x
  3. Step 3: Cross multiply
    123,724.97x = 170,740.91 × 67,136.34
  4. Step 4: Simplify right side
    123,724.97x = 11,462,920,593.79
  5. Step 5: Solve for x
    x = 11,462,920,593.79/123,724.97
  6. Step 6: Final answer
    x = 92,648.40

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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.