Home / 154,583.40-231,873.23-87,120.53

Finding the Fourth Proportional to 154,583.40, 231,873.23 and 87,120.53

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Solution

The fourth proportional to 154,583.40, 231,873.23 and 87,120.53 is: 130,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,583.40 : 231,873.23 = 87,120.53 : x
  2. Step 2: Convert to fraction form
    154,583.40/231,873.23 = 87,120.53/x
  3. Step 3: Cross multiply
    154,583.40x = 231,873.23 × 87,120.53
  4. Step 4: Simplify right side
    154,583.40x = 20,200,917,095.44
  5. Step 5: Solve for x
    x = 20,200,917,095.44/154,583.40
  6. Step 6: Final answer
    x = 130,679.73

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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.