Home / 154,200.72-231,143.52-87,499.96

Finding the Fourth Proportional to 154,200.72, 231,143.52 and 87,499.96

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Solution

The fourth proportional to 154,200.72, 231,143.52 and 87,499.96 is: 131,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,200.72 : 231,143.52 = 87,499.96 : x
  2. Step 2: Convert to fraction form
    154,200.72/231,143.52 = 87,499.96/x
  3. Step 3: Cross multiply
    154,200.72x = 231,143.52 × 87,499.96
  4. Step 4: Simplify right side
    154,200.72x = 20,225,048,754.26
  5. Step 5: Solve for x
    x = 20,225,048,754.26/154,200.72
  6. Step 6: Final answer
    x = 131,160.53

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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.