Home / 135,565.66-187,080.46-75,136.42

Finding the Fourth Proportional to 135,565.66, 187,080.46 and 75,136.42

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Solution

The fourth proportional to 135,565.66, 187,080.46 and 75,136.42 is: 103,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,565.66 : 187,080.46 = 75,136.42 : x
  2. Step 2: Convert to fraction form
    135,565.66/187,080.46 = 75,136.42/x
  3. Step 3: Cross multiply
    135,565.66x = 187,080.46 × 75,136.42
  4. Step 4: Simplify right side
    135,565.66x = 14,056,556,016.35
  5. Step 5: Solve for x
    x = 14,056,556,016.35/135,565.66
  6. Step 6: Final answer
    x = 103,688.18

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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.