Home / 121,236.89-167,312.08-67,521.91

Finding the Fourth Proportional to 121,236.89, 167,312.08 and 67,521.91

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Solution

The fourth proportional to 121,236.89, 167,312.08 and 67,521.91 is: 93,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,236.89 : 167,312.08 = 67,521.91 : x
  2. Step 2: Convert to fraction form
    121,236.89/167,312.08 = 67,521.91/x
  3. Step 3: Cross multiply
    121,236.89x = 167,312.08 × 67,521.91
  4. Step 4: Simplify right side
    121,236.89x = 11,297,231,207.67
  5. Step 5: Solve for x
    x = 11,297,231,207.67/121,236.89
  6. Step 6: Final answer
    x = 93,183.12

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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.