Home / 168,891.20-253,336.80-102,406.40

Finding the Fourth Proportional to 168,891.20, 253,336.80 and 102,406.40

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Solution

The fourth proportional to 168,891.20, 253,336.80 and 102,406.40 is: 153,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,891.20 : 253,336.80 = 102,406.40 : x
  2. Step 2: Convert to fraction form
    168,891.20/253,336.80 = 102,406.40/x
  3. Step 3: Cross multiply
    168,891.20x = 253,336.80 × 102,406.40
  4. Step 4: Simplify right side
    168,891.20x = 25,943,309,675.52
  5. Step 5: Solve for x
    x = 25,943,309,675.52/168,891.20
  6. Step 6: Final answer
    x = 153,609.60

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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.