Home / 121,518.42-167,691.48-66,325.62

Finding the Fourth Proportional to 121,518.42, 167,691.48 and 66,325.62

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Solution

The fourth proportional to 121,518.42, 167,691.48 and 66,325.62 is: 91,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,518.42 : 167,691.48 = 66,325.62 : x
  2. Step 2: Convert to fraction form
    121,518.42/167,691.48 = 66,325.62/x
  3. Step 3: Cross multiply
    121,518.42x = 167,691.48 × 66,325.62
  4. Step 4: Simplify right side
    121,518.42x = 11,122,241,379.72
  5. Step 5: Solve for x
    x = 11,122,241,379.72/121,518.42
  6. Step 6: Final answer
    x = 91,527.21

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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.