Home / 121,332.75-167,542.38-76,086.51

Finding the Fourth Proportional to 121,332.75, 167,542.38 and 76,086.51

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Solution

The fourth proportional to 121,332.75, 167,542.38 and 76,086.51 is: 105,064.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,332.75 : 167,542.38 = 76,086.51 : x
  2. Step 2: Convert to fraction form
    121,332.75/167,542.38 = 76,086.51/x
  3. Step 3: Cross multiply
    121,332.75x = 167,542.38 × 76,086.51
  4. Step 4: Simplify right side
    121,332.75x = 12,747,714,971.29
  5. Step 5: Solve for x
    x = 12,747,714,971.29/121,332.75
  6. Step 6: Final answer
    x = 105,064.09

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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.