Home / 121,534.65-167,650.43-71,223.93

Finding the Fourth Proportional to 121,534.65, 167,650.43 and 71,223.93

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Solution

The fourth proportional to 121,534.65, 167,650.43 and 71,223.93 is: 98,249.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,534.65 : 167,650.43 = 71,223.93 : x
  2. Step 2: Convert to fraction form
    121,534.65/167,650.43 = 71,223.93/x
  3. Step 3: Cross multiply
    121,534.65x = 167,650.43 × 71,223.93
  4. Step 4: Simplify right side
    121,534.65x = 11,940,722,134.67
  5. Step 5: Solve for x
    x = 11,940,722,134.67/121,534.65
  6. Step 6: Final answer
    x = 98,249.53

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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.