Home / 136,297.27-187,685.80-97,989.40

Finding the Fourth Proportional to 136,297.27, 187,685.80 and 97,989.40

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Solution

The fourth proportional to 136,297.27, 187,685.80 and 97,989.40 is: 134,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,297.27 : 187,685.80 = 97,989.40 : x
  2. Step 2: Convert to fraction form
    136,297.27/187,685.80 = 97,989.40/x
  3. Step 3: Cross multiply
    136,297.27x = 187,685.80 × 97,989.40
  4. Step 4: Simplify right side
    136,297.27x = 18,391,218,930.52
  5. Step 5: Solve for x
    x = 18,391,218,930.52/136,297.27
  6. Step 6: Final answer
    x = 134,934.61

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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.