Home / 121,653.24-167,879.78-70,694.76

Finding the Fourth Proportional to 121,653.24, 167,879.78 and 70,694.76

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Solution

The fourth proportional to 121,653.24, 167,879.78 and 70,694.76 is: 97,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,653.24 : 167,879.78 = 70,694.76 : x
  2. Step 2: Convert to fraction form
    121,653.24/167,879.78 = 70,694.76/x
  3. Step 3: Cross multiply
    121,653.24x = 167,879.78 × 70,694.76
  4. Step 4: Simplify right side
    121,653.24x = 11,868,220,755.95
  5. Step 5: Solve for x
    x = 11,868,220,755.95/121,653.24
  6. Step 6: Final answer
    x = 97,557.79

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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.