Home / 121,642.74-167,867.34-67,929.69

Finding the Fourth Proportional to 121,642.74, 167,867.34 and 67,929.69

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Solution

The fourth proportional to 121,642.74, 167,867.34 and 67,929.69 is: 93,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,642.74 : 167,867.34 = 67,929.69 : x
  2. Step 2: Convert to fraction form
    121,642.74/167,867.34 = 67,929.69/x
  3. Step 3: Cross multiply
    121,642.74x = 167,867.34 × 67,929.69
  4. Step 4: Simplify right side
    121,642.74x = 11,403,176,367.32
  5. Step 5: Solve for x
    x = 11,403,176,367.32/121,642.74
  6. Step 6: Final answer
    x = 93,743.17

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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.