Home / 136,121.31-187,684.70-88,357.23

Finding the Fourth Proportional to 136,121.31, 187,684.70 and 88,357.23

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Solution

The fourth proportional to 136,121.31, 187,684.70 and 88,357.23 is: 121,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,121.31 : 187,684.70 = 88,357.23 : x
  2. Step 2: Convert to fraction form
    136,121.31/187,684.70 = 88,357.23/x
  3. Step 3: Cross multiply
    136,121.31x = 187,684.70 × 88,357.23
  4. Step 4: Simplify right side
    136,121.31x = 16,583,299,763.59
  5. Step 5: Solve for x
    x = 16,583,299,763.59/136,121.31
  6. Step 6: Final answer
    x = 121,827.36

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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.