Home / 168,844.50-253,354.23-85,738.50

Finding the Fourth Proportional to 168,844.50, 253,354.23 and 85,738.50

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Solution

The fourth proportional to 168,844.50, 253,354.23 and 85,738.50 is: 128,652.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,844.50 : 253,354.23 = 85,738.50 : x
  2. Step 2: Convert to fraction form
    168,844.50/253,354.23 = 85,738.50/x
  3. Step 3: Cross multiply
    168,844.50x = 253,354.23 × 85,738.50
  4. Step 4: Simplify right side
    168,844.50x = 21,722,211,648.86
  5. Step 5: Solve for x
    x = 21,722,211,648.86/168,844.50
  6. Step 6: Final answer
    x = 128,652.17

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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.