Home / 168,821.96-253,139.45-69,052.21

Finding the Fourth Proportional to 168,821.96, 253,139.45 and 69,052.21

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Solution

The fourth proportional to 168,821.96, 253,139.45 and 69,052.21 is: 103,540.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,821.96 : 253,139.45 = 69,052.21 : x
  2. Step 2: Convert to fraction form
    168,821.96/253,139.45 = 69,052.21/x
  3. Step 3: Cross multiply
    168,821.96x = 253,139.45 × 69,052.21
  4. Step 4: Simplify right side
    168,821.96x = 17,479,837,482.57
  5. Step 5: Solve for x
    x = 17,479,837,482.57/168,821.96
  6. Step 6: Final answer
    x = 103,540.07

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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.