Home / 239,011.83-358,255.29-81,121.37

Finding the Fourth Proportional to 239,011.83, 358,255.29 and 81,121.37

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Solution

The fourth proportional to 239,011.83, 358,255.29 and 81,121.37 is: 121,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,011.83 : 358,255.29 = 81,121.37 : x
  2. Step 2: Convert to fraction form
    239,011.83/358,255.29 = 81,121.37/x
  3. Step 3: Cross multiply
    239,011.83x = 358,255.29 × 81,121.37
  4. Step 4: Simplify right side
    239,011.83x = 29,062,158,143.27
  5. Step 5: Solve for x
    x = 29,062,158,143.27/239,011.83
  6. Step 6: Final answer
    x = 121,592.97

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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.