Home / 154,421.40-231,582.84-49,215.78

Finding the Fourth Proportional to 154,421.40, 231,582.84 and 49,215.78

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Solution

The fourth proportional to 154,421.40, 231,582.84 and 49,215.78 is: 73,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.40 : 231,582.84 = 49,215.78 : x
  2. Step 2: Convert to fraction form
    154,421.40/231,582.84 = 49,215.78/x
  3. Step 3: Cross multiply
    154,421.40x = 231,582.84 × 49,215.78
  4. Step 4: Simplify right side
    154,421.40x = 11,397,530,105.22
  5. Step 5: Solve for x
    x = 11,397,530,105.22/154,421.40
  6. Step 6: Final answer
    x = 73,807.97

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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.