Home / 154,154.82-231,074.64-87,454.08

Finding the Fourth Proportional to 154,154.82, 231,074.64 and 87,454.08

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Solution

The fourth proportional to 154,154.82, 231,074.64 and 87,454.08 is: 131,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,154.82 : 231,074.64 = 87,454.08 : x
  2. Step 2: Convert to fraction form
    154,154.82/231,074.64 = 87,454.08/x
  3. Step 3: Cross multiply
    154,154.82x = 231,074.64 × 87,454.08
  4. Step 4: Simplify right side
    154,154.82x = 20,208,420,052.53
  5. Step 5: Solve for x
    x = 20,208,420,052.53/154,154.82
  6. Step 6: Final answer
    x = 131,091.72

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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.