Home / 168,311.66-232,191.81-100,290.47

Finding the Fourth Proportional to 168,311.66, 232,191.81 and 100,290.47

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Solution

The fourth proportional to 168,311.66, 232,191.81 and 100,290.47 is: 138,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,311.66 : 232,191.81 = 100,290.47 : x
  2. Step 2: Convert to fraction form
    168,311.66/232,191.81 = 100,290.47/x
  3. Step 3: Cross multiply
    168,311.66x = 232,191.81 × 100,290.47
  4. Step 4: Simplify right side
    168,311.66x = 23,286,624,594.09
  5. Step 5: Solve for x
    x = 23,286,624,594.09/168,311.66
  6. Step 6: Final answer
    x = 138,354.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.