Home / 135,536.40-187,046.18-75,106.90

Finding the Fourth Proportional to 135,536.40, 187,046.18 and 75,106.90

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Solution

The fourth proportional to 135,536.40, 187,046.18 and 75,106.90 is: 103,650.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,536.40 : 187,046.18 = 75,106.90 : x
  2. Step 2: Convert to fraction form
    135,536.40/187,046.18 = 75,106.90/x
  3. Step 3: Cross multiply
    135,536.40x = 187,046.18 × 75,106.90
  4. Step 4: Simplify right side
    135,536.40x = 14,048,458,736.64
  5. Step 5: Solve for x
    x = 14,048,458,736.64/135,536.40
  6. Step 6: Final answer
    x = 103,650.82

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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.