Home / 154,401.79-231,621.37-54,541.55

Finding the Fourth Proportional to 154,401.79, 231,621.37 and 54,541.55

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Solution

The fourth proportional to 154,401.79, 231,621.37 and 54,541.55 is: 81,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,401.79 : 231,621.37 = 54,541.55 : x
  2. Step 2: Convert to fraction form
    154,401.79/231,621.37 = 54,541.55/x
  3. Step 3: Cross multiply
    154,401.79x = 231,621.37 × 54,541.55
  4. Step 4: Simplify right side
    154,401.79x = 12,632,988,396.57
  5. Step 5: Solve for x
    x = 12,632,988,396.57/154,401.79
  6. Step 6: Final answer
    x = 81,818.92

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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.