Home / 135,604.28-187,116.60-75,174.36

Finding the Fourth Proportional to 135,604.28, 187,116.60 and 75,174.36

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Solution

The fourth proportional to 135,604.28, 187,116.60 and 75,174.36 is: 103,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,604.28 : 187,116.60 = 75,174.36 : x
  2. Step 2: Convert to fraction form
    135,604.28/187,116.60 = 75,174.36/x
  3. Step 3: Cross multiply
    135,604.28x = 187,116.60 × 75,174.36
  4. Step 4: Simplify right side
    135,604.28x = 14,066,370,650.38
  5. Step 5: Solve for x
    x = 14,066,370,650.38/135,604.28
  6. Step 6: Final answer
    x = 103,731.02

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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.