Home / 154,208.72-231,155.52-87,508

Finding the Fourth Proportional to 154,208.72, 231,155.52 and 87,508

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Solution

The fourth proportional to 154,208.72, 231,155.52 and 87,508 is: 131,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,208.72 : 231,155.52 = 87,508 : x
  2. Step 2: Convert to fraction form
    154,208.72/231,155.52 = 87,508/x
  3. Step 3: Cross multiply
    154,208.72x = 231,155.52 × 87,508
  4. Step 4: Simplify right side
    154,208.72x = 20,227,957,244.16
  5. Step 5: Solve for x
    x = 20,227,957,244.16/154,208.72
  6. Step 6: Final answer
    x = 131,172.59

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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.