Home / 168,689.07-253,067.01-88,765.15

Finding the Fourth Proportional to 168,689.07, 253,067.01 and 88,765.15

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Solution

The fourth proportional to 168,689.07, 253,067.01 and 88,765.15 is: 133,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,689.07 : 253,067.01 = 88,765.15 : x
  2. Step 2: Convert to fraction form
    168,689.07/253,067.01 = 88,765.15/x
  3. Step 3: Cross multiply
    168,689.07x = 253,067.01 × 88,765.15
  4. Step 4: Simplify right side
    168,689.07x = 22,463,531,102.70
  5. Step 5: Solve for x
    x = 22,463,531,102.70/168,689.07
  6. Step 6: Final answer
    x = 133,165.30

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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.