Home / 151,081.20-226,751.40-66,970.80

Finding the Fourth Proportional to 151,081.20, 226,751.40 and 66,970.80

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Solution

The fourth proportional to 151,081.20, 226,751.40 and 66,970.80 is: 100,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,081.20 : 226,751.40 = 66,970.80 : x
  2. Step 2: Convert to fraction form
    151,081.20/226,751.40 = 66,970.80/x
  3. Step 3: Cross multiply
    151,081.20x = 226,751.40 × 66,970.80
  4. Step 4: Simplify right side
    151,081.20x = 15,185,722,659.12
  5. Step 5: Solve for x
    x = 15,185,722,659.12/151,081.20
  6. Step 6: Final answer
    x = 100,513.65

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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.