Home / 135,561.06-187,069.13-75,132.73

Finding the Fourth Proportional to 135,561.06, 187,069.13 and 75,132.73

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Solution

The fourth proportional to 135,561.06, 187,069.13 and 75,132.73 is: 103,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,561.06 : 187,069.13 = 75,132.73 : x
  2. Step 2: Convert to fraction form
    135,561.06/187,069.13 = 75,132.73/x
  3. Step 3: Cross multiply
    135,561.06x = 187,069.13 × 75,132.73
  4. Step 4: Simplify right side
    135,561.06x = 14,055,014,575.55
  5. Step 5: Solve for x
    x = 14,055,014,575.55/135,561.06
  6. Step 6: Final answer
    x = 103,680.32

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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.