Home / 121,512.80-182,269.20-74,273.60

Finding the Fourth Proportional to 121,512.80, 182,269.20 and 74,273.60

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Solution

The fourth proportional to 121,512.80, 182,269.20 and 74,273.60 is: 111,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,512.80 : 182,269.20 = 74,273.60 : x
  2. Step 2: Convert to fraction form
    121,512.80/182,269.20 = 74,273.60/x
  3. Step 3: Cross multiply
    121,512.80x = 182,269.20 × 74,273.60
  4. Step 4: Simplify right side
    121,512.80x = 13,537,789,653.12
  5. Step 5: Solve for x
    x = 13,537,789,653.12/121,512.80
  6. Step 6: Final answer
    x = 111,410.40

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1.5x scale

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.