Home / 135,542.22-187,045.98-75,112.74

Finding the Fourth Proportional to 135,542.22, 187,045.98 and 75,112.74

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Solution

The fourth proportional to 135,542.22, 187,045.98 and 75,112.74 is: 103,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,542.22 : 187,045.98 = 75,112.74 : x
  2. Step 2: Convert to fraction form
    135,542.22/187,045.98 = 75,112.74/x
  3. Step 3: Cross multiply
    135,542.22x = 187,045.98 × 75,112.74
  4. Step 4: Simplify right side
    135,542.22x = 14,049,536,063.79
  5. Step 5: Solve for x
    x = 14,049,536,063.79/135,542.22
  6. Step 6: Final answer
    x = 103,654.32

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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.