Home / 168,014.40-252,079.20-74,587.20

Finding the Fourth Proportional to 168,014.40, 252,079.20 and 74,587.20

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Solution

The fourth proportional to 168,014.40, 252,079.20 and 74,587.20 is: 111,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.40 : 252,079.20 = 74,587.20 : x
  2. Step 2: Convert to fraction form
    168,014.40/252,079.20 = 74,587.20/x
  3. Step 3: Cross multiply
    168,014.40x = 252,079.20 × 74,587.20
  4. Step 4: Simplify right side
    168,014.40x = 18,801,881,706.24
  5. Step 5: Solve for x
    x = 18,801,881,706.24/168,014.40
  6. Step 6: Final answer
    x = 111,906.37

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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.