Home / 135,815.80-187,422.90-75,382.92

Finding the Fourth Proportional to 135,815.80, 187,422.90 and 75,382.92

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Solution

The fourth proportional to 135,815.80, 187,422.90 and 75,382.92 is: 104,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,815.80 : 187,422.90 = 75,382.92 : x
  2. Step 2: Convert to fraction form
    135,815.80/187,422.90 = 75,382.92/x
  3. Step 3: Cross multiply
    135,815.80x = 187,422.90 × 75,382.92
  4. Step 4: Simplify right side
    135,815.80x = 14,128,485,476.87
  5. Step 5: Solve for x
    x = 14,128,485,476.87/135,815.80
  6. Step 6: Final answer
    x = 104,026.82

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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.