Home / 136,125.09-187,825.10-79,525.53

Finding the Fourth Proportional to 136,125.09, 187,825.10 and 79,525.53

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Solution

The fourth proportional to 136,125.09, 187,825.10 and 79,525.53 is: 109,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,125.09 : 187,825.10 = 79,525.53 : x
  2. Step 2: Convert to fraction form
    136,125.09/187,825.10 = 79,525.53/x
  3. Step 3: Cross multiply
    136,125.09x = 187,825.10 × 79,525.53
  4. Step 4: Simplify right side
    136,125.09x = 14,936,890,227.18
  5. Step 5: Solve for x
    x = 14,936,890,227.18/136,125.09
  6. Step 6: Final answer
    x = 109,729.15

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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.