Home / 121,451.04-180,969.21-108,201.60

Finding the Fourth Proportional to 121,451.04, 180,969.21 and 108,201.60

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Solution

The fourth proportional to 121,451.04, 180,969.21 and 108,201.60 is: 161,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451.04 : 180,969.21 = 108,201.60 : x
  2. Step 2: Convert to fraction form
    121,451.04/180,969.21 = 108,201.60/x
  3. Step 3: Cross multiply
    121,451.04x = 180,969.21 × 108,201.60
  4. Step 4: Simplify right side
    121,451.04x = 19,581,158,072.74
  5. Step 5: Solve for x
    x = 19,581,158,072.74/121,451.04
  6. Step 6: Final answer
    x = 161,226.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.