Home / 135,787.68-187,398.18-75,357.23

Finding the Fourth Proportional to 135,787.68, 187,398.18 and 75,357.23

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Solution

The fourth proportional to 135,787.68, 187,398.18 and 75,357.23 is: 103,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,787.68 : 187,398.18 = 75,357.23 : x
  2. Step 2: Convert to fraction form
    135,787.68/187,398.18 = 75,357.23/x
  3. Step 3: Cross multiply
    135,787.68x = 187,398.18 × 75,357.23
  4. Step 4: Simplify right side
    135,787.68x = 14,121,806,814.85
  5. Step 5: Solve for x
    x = 14,121,806,814.85/135,787.68
  6. Step 6: Final answer
    x = 103,999.18

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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.