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Finding the Fourth Proportional to 168,070.72, 252,145.24 and 55,742.72

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Solution

The fourth proportional to 168,070.72, 252,145.24 and 55,742.72 is: 83,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,070.72 : 252,145.24 = 55,742.72 : x
  2. Step 2: Convert to fraction form
    168,070.72/252,145.24 = 55,742.72/x
  3. Step 3: Cross multiply
    168,070.72x = 252,145.24 × 55,742.72
  4. Step 4: Simplify right side
    168,070.72x = 14,055,261,512.65
  5. Step 5: Solve for x
    x = 14,055,261,512.65/168,070.72
  6. Step 6: Final answer
    x = 83,627.07

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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.