Home / 154,616.31-213,367.59-85,704.62

Finding the Fourth Proportional to 154,616.31, 213,367.59 and 85,704.62

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Solution

The fourth proportional to 154,616.31, 213,367.59 and 85,704.62 is: 118,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,616.31 : 213,367.59 = 85,704.62 : x
  2. Step 2: Convert to fraction form
    154,616.31/213,367.59 = 85,704.62/x
  3. Step 3: Cross multiply
    154,616.31x = 213,367.59 × 85,704.62
  4. Step 4: Simplify right side
    154,616.31x = 18,286,587,154.43
  5. Step 5: Solve for x
    x = 18,286,587,154.43/154,616.31
  6. Step 6: Final answer
    x = 118,270.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.