Home / 126,088.23-188,209.45-111,141.91

Finding the Fourth Proportional to 126,088.23, 188,209.45 and 111,141.91

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Solution

The fourth proportional to 126,088.23, 188,209.45 and 111,141.91 is: 165,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,088.23 : 188,209.45 = 111,141.91 : x
  2. Step 2: Convert to fraction form
    126,088.23/188,209.45 = 111,141.91/x
  3. Step 3: Cross multiply
    126,088.23x = 188,209.45 × 111,141.91
  4. Step 4: Simplify right side
    126,088.23x = 20,917,957,753.05
  5. Step 5: Solve for x
    x = 20,917,957,753.05/126,088.23
  6. Step 6: Final answer
    x = 165,899.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.