Home / 121,616.37-182,096.51-79,391.88

Finding the Fourth Proportional to 121,616.37, 182,096.51 and 79,391.88

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Solution

The fourth proportional to 121,616.37, 182,096.51 and 79,391.88 is: 118,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,616.37 : 182,096.51 = 79,391.88 : x
  2. Step 2: Convert to fraction form
    121,616.37/182,096.51 = 79,391.88/x
  3. Step 3: Cross multiply
    121,616.37x = 182,096.51 × 79,391.88
  4. Step 4: Simplify right side
    121,616.37x = 14,456,983,873.38
  5. Step 5: Solve for x
    x = 14,456,983,873.38/121,616.37
  6. Step 6: Final answer
    x = 118,873.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.