Home / 135,559.38-187,071.98-75,133.94

Finding the Fourth Proportional to 135,559.38, 187,071.98 and 75,133.94

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Solution

The fourth proportional to 135,559.38, 187,071.98 and 75,133.94 is: 103,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,559.38 : 187,071.98 = 75,133.94 : x
  2. Step 2: Convert to fraction form
    135,559.38/187,071.98 = 75,133.94/x
  3. Step 3: Cross multiply
    135,559.38x = 187,071.98 × 75,133.94
  4. Step 4: Simplify right side
    135,559.38x = 14,055,453,609.97
  5. Step 5: Solve for x
    x = 14,055,453,609.97/135,559.38
  6. Step 6: Final answer
    x = 103,684.85

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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.