Home / 154,200.32-231,315.84-71,118.08

Finding the Fourth Proportional to 154,200.32, 231,315.84 and 71,118.08

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Solution

The fourth proportional to 154,200.32, 231,315.84 and 71,118.08 is: 106,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,200.32 : 231,315.84 = 71,118.08 : x
  2. Step 2: Convert to fraction form
    154,200.32/231,315.84 = 71,118.08/x
  3. Step 3: Cross multiply
    154,200.32x = 231,315.84 × 71,118.08
  4. Step 4: Simplify right side
    154,200.32x = 16,450,738,414.39
  5. Step 5: Solve for x
    x = 16,450,738,414.39/154,200.32
  6. Step 6: Final answer
    x = 106,684.20

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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.