Home / 154,289.90-231,453.38-54,429.51

Finding the Fourth Proportional to 154,289.90, 231,453.38 and 54,429.51

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Solution

The fourth proportional to 154,289.90, 231,453.38 and 54,429.51 is: 81,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,289.90 : 231,453.38 = 54,429.51 : x
  2. Step 2: Convert to fraction form
    154,289.90/231,453.38 = 54,429.51/x
  3. Step 3: Cross multiply
    154,289.90x = 231,453.38 × 54,429.51
  4. Step 4: Simplify right side
    154,289.90x = 12,597,894,061.24
  5. Step 5: Solve for x
    x = 12,597,894,061.24/154,289.90
  6. Step 6: Final answer
    x = 81,650.80

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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.