Home / 121,421.03-167,562.12-66,975.29

Finding the Fourth Proportional to 121,421.03, 167,562.12 and 66,975.29

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Solution

The fourth proportional to 121,421.03, 167,562.12 and 66,975.29 is: 92,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,421.03 : 167,562.12 = 66,975.29 : x
  2. Step 2: Convert to fraction form
    121,421.03/167,562.12 = 66,975.29/x
  3. Step 3: Cross multiply
    121,421.03x = 167,562.12 × 66,975.29
  4. Step 4: Simplify right side
    121,421.03x = 11,222,520,742.20
  5. Step 5: Solve for x
    x = 11,222,520,742.20/121,421.03
  6. Step 6: Final answer
    x = 92,426.50

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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.