Home / 121,733.01-167,790.83-81,432.27

Finding the Fourth Proportional to 121,733.01, 167,790.83 and 81,432.27

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Solution

The fourth proportional to 121,733.01, 167,790.83 and 81,432.27 is: 112,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,733.01 : 167,790.83 = 81,432.27 : x
  2. Step 2: Convert to fraction form
    121,733.01/167,790.83 = 81,432.27/x
  3. Step 3: Cross multiply
    121,733.01x = 167,790.83 × 81,432.27
  4. Step 4: Simplify right side
    121,733.01x = 13,663,587,764.92
  5. Step 5: Solve for x
    x = 13,663,587,764.92/121,733.01
  6. Step 6: Final answer
    x = 112,242.26

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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.