Home / 136,019.36-187,743.92-88,270.08

Finding the Fourth Proportional to 136,019.36, 187,743.92 and 88,270.08

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Solution

The fourth proportional to 136,019.36, 187,743.92 and 88,270.08 is: 121,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,019.36 : 187,743.92 = 88,270.08 : x
  2. Step 2: Convert to fraction form
    136,019.36/187,743.92 = 88,270.08/x
  3. Step 3: Cross multiply
    136,019.36x = 187,743.92 × 88,270.08
  4. Step 4: Simplify right side
    136,019.36x = 16,572,170,837.91
  5. Step 5: Solve for x
    x = 16,572,170,837.91/136,019.36
  6. Step 6: Final answer
    x = 121,836.85

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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.