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Finding the Fourth Proportional to 168,614.31, 252,468.25 and 128,441.93

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Solution

The fourth proportional to 168,614.31, 252,468.25 and 128,441.93 is: 192,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,614.31 : 252,468.25 = 128,441.93 : x
  2. Step 2: Convert to fraction form
    168,614.31/252,468.25 = 128,441.93/x
  3. Step 3: Cross multiply
    168,614.31x = 252,468.25 × 128,441.93
  4. Step 4: Simplify right side
    168,614.31x = 32,427,507,710.28
  5. Step 5: Solve for x
    x = 32,427,507,710.28/168,614.31
  6. Step 6: Final answer
    x = 192,317.65

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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.