Home / 135,968.80-187,616.10-75,538.48

Finding the Fourth Proportional to 135,968.80, 187,616.10 and 75,538.48

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Solution

The fourth proportional to 135,968.80, 187,616.10 and 75,538.48 is: 104,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,968.80 : 187,616.10 = 75,538.48 : x
  2. Step 2: Convert to fraction form
    135,968.80/187,616.10 = 75,538.48/x
  3. Step 3: Cross multiply
    135,968.80x = 187,616.10 × 75,538.48
  4. Step 4: Simplify right side
    135,968.80x = 14,172,235,017.53
  5. Step 5: Solve for x
    x = 14,172,235,017.53/135,968.80
  6. Step 6: Final answer
    x = 104,231.52

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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.