Home / 154,311.40-231,417.18-49,105.72

Finding the Fourth Proportional to 154,311.40, 231,417.18 and 49,105.72

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Solution

The fourth proportional to 154,311.40, 231,417.18 and 49,105.72 is: 73,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,311.40 : 231,417.18 = 49,105.72 : x
  2. Step 2: Convert to fraction form
    154,311.40/231,417.18 = 49,105.72/x
  3. Step 3: Cross multiply
    154,311.40x = 231,417.18 × 49,105.72
  4. Step 4: Simplify right side
    154,311.40x = 11,363,907,244.27
  5. Step 5: Solve for x
    x = 11,363,907,244.27/154,311.40
  6. Step 6: Final answer
    x = 73,642.69

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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.