Home / 121,569.42-167,633.54-79,049.10

Finding the Fourth Proportional to 121,569.42, 167,633.54 and 79,049.10

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Solution

The fourth proportional to 121,569.42, 167,633.54 and 79,049.10 is: 109,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,569.42 : 167,633.54 = 79,049.10 : x
  2. Step 2: Convert to fraction form
    121,569.42/167,633.54 = 79,049.10/x
  3. Step 3: Cross multiply
    121,569.42x = 167,633.54 × 79,049.10
  4. Step 4: Simplify right side
    121,569.42x = 13,251,280,466.81
  5. Step 5: Solve for x
    x = 13,251,280,466.81/121,569.42
  6. Step 6: Final answer
    x = 109,001.76

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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.