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Finding the Fourth Proportional to 168,200.80, 252,301.20 and 105,992.80

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Solution

The fourth proportional to 168,200.80, 252,301.20 and 105,992.80 is: 158,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,200.80 : 252,301.20 = 105,992.80 : x
  2. Step 2: Convert to fraction form
    168,200.80/252,301.20 = 105,992.80/x
  3. Step 3: Cross multiply
    168,200.80x = 252,301.20 × 105,992.80
  4. Step 4: Simplify right side
    168,200.80x = 26,742,110,631.36
  5. Step 5: Solve for x
    x = 26,742,110,631.36/168,200.80
  6. Step 6: Final answer
    x = 158,989.20

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1.5x scale

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.