Home / 121,091.20-181,636.80-110,204.80

Finding the Fourth Proportional to 121,091.20, 181,636.80 and 110,204.80

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Solution

The fourth proportional to 121,091.20, 181,636.80 and 110,204.80 is: 165,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,091.20 : 181,636.80 = 110,204.80 : x
  2. Step 2: Convert to fraction form
    121,091.20/181,636.80 = 110,204.80/x
  3. Step 3: Cross multiply
    121,091.20x = 181,636.80 × 110,204.80
  4. Step 4: Simplify right side
    121,091.20x = 20,017,247,216.64
  5. Step 5: Solve for x
    x = 20,017,247,216.64/121,091.20
  6. Step 6: Final answer
    x = 165,307.20

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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.