Home / 168,784.35-253,301.12-80,038.15

Finding the Fourth Proportional to 168,784.35, 253,301.12 and 80,038.15

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Solution

The fourth proportional to 168,784.35, 253,301.12 and 80,038.15 is: 120,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,784.35 : 253,301.12 = 80,038.15 : x
  2. Step 2: Convert to fraction form
    168,784.35/253,301.12 = 80,038.15/x
  3. Step 3: Cross multiply
    168,784.35x = 253,301.12 × 80,038.15
  4. Step 4: Simplify right side
    168,784.35x = 20,273,753,037.73
  5. Step 5: Solve for x
    x = 20,273,753,037.73/168,784.35
  6. Step 6: Final answer
    x = 120,116.31

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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.