Home / 219,731.76-329,596.83-91,792.26

Finding the Fourth Proportional to 219,731.76, 329,596.83 and 91,792.26

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Solution

The fourth proportional to 219,731.76, 329,596.83 and 91,792.26 is: 137,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,731.76 : 329,596.83 = 91,792.26 : x
  2. Step 2: Convert to fraction form
    219,731.76/329,596.83 = 91,792.26/x
  3. Step 3: Cross multiply
    219,731.76x = 329,596.83 × 91,792.26
  4. Step 4: Simplify right side
    219,731.76x = 30,254,437,914.54
  5. Step 5: Solve for x
    x = 30,254,437,914.54/219,731.76
  6. Step 6: Final answer
    x = 137,688.05

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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.