Home / 171,723.30-236,984.31-100,091.76

Finding the Fourth Proportional to 171,723.30, 236,984.31 and 100,091.76

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Solution

The fourth proportional to 171,723.30, 236,984.31 and 100,091.76 is: 138,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,723.30 : 236,984.31 = 100,091.76 : x
  2. Step 2: Convert to fraction form
    171,723.30/236,984.31 = 100,091.76/x
  3. Step 3: Cross multiply
    171,723.30x = 236,984.31 × 100,091.76
  4. Step 4: Simplify right side
    171,723.30x = 23,720,176,680.29
  5. Step 5: Solve for x
    x = 23,720,176,680.29/171,723.30
  6. Step 6: Final answer
    x = 138,130.22

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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.