Home / 168,780.20-253,137.90-50,455.40

Finding the Fourth Proportional to 168,780.20, 253,137.90 and 50,455.40

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Solution

The fourth proportional to 168,780.20, 253,137.90 and 50,455.40 is: 75,673.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,780.20 : 253,137.90 = 50,455.40 : x
  2. Step 2: Convert to fraction form
    168,780.20/253,137.90 = 50,455.40/x
  3. Step 3: Cross multiply
    168,780.20x = 253,137.90 × 50,455.40
  4. Step 4: Simplify right side
    168,780.20x = 12,772,173,999.66
  5. Step 5: Solve for x
    x = 12,772,173,999.66/168,780.20
  6. Step 6: Final answer
    x = 75,673.41

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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.