Home / 154,977.24-213,872.22-87,909.24

Finding the Fourth Proportional to 154,977.24, 213,872.22 and 87,909.24

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Solution

The fourth proportional to 154,977.24, 213,872.22 and 87,909.24 is: 121,316.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,977.24 : 213,872.22 = 87,909.24 : x
  2. Step 2: Convert to fraction form
    154,977.24/213,872.22 = 87,909.24/x
  3. Step 3: Cross multiply
    154,977.24x = 213,872.22 × 87,909.24
  4. Step 4: Simplify right side
    154,977.24x = 18,801,344,317.31
  5. Step 5: Solve for x
    x = 18,801,344,317.31/154,977.24
  6. Step 6: Final answer
    x = 121,316.81

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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.