Home / 121,684.02-182,081.97-71,788.02

Finding the Fourth Proportional to 121,684.02, 182,081.97 and 71,788.02

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Solution

The fourth proportional to 121,684.02, 182,081.97 and 71,788.02 is: 107,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,684.02 : 182,081.97 = 71,788.02 : x
  2. Step 2: Convert to fraction form
    121,684.02/182,081.97 = 71,788.02/x
  3. Step 3: Cross multiply
    121,684.02x = 182,081.97 × 71,788.02
  4. Step 4: Simplify right side
    121,684.02x = 13,071,304,104.00
  5. Step 5: Solve for x
    x = 13,071,304,104.00/121,684.02
  6. Step 6: Final answer
    x = 107,420.05

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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.