Home / 121,264.86-167,285.34-81,032.57

Finding the Fourth Proportional to 121,264.86, 167,285.34 and 81,032.57

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Solution

The fourth proportional to 121,264.86, 167,285.34 and 81,032.57 is: 111,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264.86 : 167,285.34 = 81,032.57 : x
  2. Step 2: Convert to fraction form
    121,264.86/167,285.34 = 81,032.57/x
  3. Step 3: Cross multiply
    121,264.86x = 167,285.34 × 81,032.57
  4. Step 4: Simplify right side
    121,264.86x = 13,555,560,187.10
  5. Step 5: Solve for x
    x = 13,555,560,187.10/121,264.86
  6. Step 6: Final answer
    x = 111,784.73

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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.