Home / 135,675.21-187,243.29-75,265.32

Finding the Fourth Proportional to 135,675.21, 187,243.29 and 75,265.32

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Solution

The fourth proportional to 135,675.21, 187,243.29 and 75,265.32 is: 103,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,675.21 : 187,243.29 = 75,265.32 : x
  2. Step 2: Convert to fraction form
    135,675.21/187,243.29 = 75,265.32/x
  3. Step 3: Cross multiply
    135,675.21x = 187,243.29 × 75,265.32
  4. Step 4: Simplify right side
    135,675.21x = 14,092,926,139.70
  5. Step 5: Solve for x
    x = 14,092,926,139.70/135,675.21
  6. Step 6: Final answer
    x = 103,872.52

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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.