Home / 168,271.40-252,400.10-68,427.75

Finding the Fourth Proportional to 168,271.40, 252,400.10 and 68,427.75

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Solution

The fourth proportional to 168,271.40, 252,400.10 and 68,427.75 is: 102,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,271.40 : 252,400.10 = 68,427.75 : x
  2. Step 2: Convert to fraction form
    168,271.40/252,400.10 = 68,427.75/x
  3. Step 3: Cross multiply
    168,271.40x = 252,400.10 × 68,427.75
  4. Step 4: Simplify right side
    168,271.40x = 17,271,170,600.64
  5. Step 5: Solve for x
    x = 17,271,170,600.64/168,271.40
  6. Step 6: Final answer
    x = 102,638.78

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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.