Home / 239,128.52-358,688.94-81,466.76

Finding the Fourth Proportional to 239,128.52, 358,688.94 and 81,466.76

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Solution

The fourth proportional to 239,128.52, 358,688.94 and 81,466.76 is: 122,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,128.52 : 358,688.94 = 81,466.76 : x
  2. Step 2: Convert to fraction form
    239,128.52/358,688.94 = 81,466.76/x
  3. Step 3: Cross multiply
    239,128.52x = 358,688.94 × 81,466.76
  4. Step 4: Simplify right side
    239,128.52x = 29,221,225,789.63
  5. Step 5: Solve for x
    x = 29,221,225,789.63/239,128.52
  6. Step 6: Final answer
    x = 122,198.83

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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.