Home / 168,214.54-252,316.32-68,345.20

Finding the Fourth Proportional to 168,214.54, 252,316.32 and 68,345.20

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Solution

The fourth proportional to 168,214.54, 252,316.32 and 68,345.20 is: 102,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,214.54 : 252,316.32 = 68,345.20 : x
  2. Step 2: Convert to fraction form
    168,214.54/252,316.32 = 68,345.20/x
  3. Step 3: Cross multiply
    168,214.54x = 252,316.32 × 68,345.20
  4. Step 4: Simplify right side
    168,214.54x = 17,244,609,353.66
  5. Step 5: Solve for x
    x = 17,244,609,353.66/168,214.54
  6. Step 6: Final answer
    x = 102,515.57

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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.