Home / 168,463.08-252,645.21-138,807.36

Finding the Fourth Proportional to 168,463.08, 252,645.21 and 138,807.36

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Solution

The fourth proportional to 168,463.08, 252,645.21 and 138,807.36 is: 208,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,463.08 : 252,645.21 = 138,807.36 : x
  2. Step 2: Convert to fraction form
    168,463.08/252,645.21 = 138,807.36/x
  3. Step 3: Cross multiply
    168,463.08x = 252,645.21 × 138,807.36
  4. Step 4: Simplify right side
    168,463.08x = 35,069,014,616.75
  5. Step 5: Solve for x
    x = 35,069,014,616.75/168,463.08
  6. Step 6: Final answer
    x = 208,170.33

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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.