Home / 168,279.20-252,111.60-102,538.40

Finding the Fourth Proportional to 168,279.20, 252,111.60 and 102,538.40

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Solution

The fourth proportional to 168,279.20, 252,111.60 and 102,538.40 is: 153,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,279.20 : 252,111.60 = 102,538.40 : x
  2. Step 2: Convert to fraction form
    168,279.20/252,111.60 = 102,538.40/x
  3. Step 3: Cross multiply
    168,279.20x = 252,111.60 × 102,538.40
  4. Step 4: Simplify right side
    168,279.20x = 25,851,120,085.44
  5. Step 5: Solve for x
    x = 25,851,120,085.44/168,279.20
  6. Step 6: Final answer
    x = 153,620.41

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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.