Home / 135,577.64-187,103.40-75,149.57

Finding the Fourth Proportional to 135,577.64, 187,103.40 and 75,149.57

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Solution

The fourth proportional to 135,577.64, 187,103.40 and 75,149.57 is: 103,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,577.64 : 187,103.40 = 75,149.57 : x
  2. Step 2: Convert to fraction form
    135,577.64/187,103.40 = 75,149.57/x
  3. Step 3: Cross multiply
    135,577.64x = 187,103.40 × 75,149.57
  4. Step 4: Simplify right side
    135,577.64x = 14,060,740,055.54
  5. Step 5: Solve for x
    x = 14,060,740,055.54/135,577.64
  6. Step 6: Final answer
    x = 103,709.87

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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.