Home / 219,916.71-303,452.79-123,115.53

Finding the Fourth Proportional to 219,916.71, 303,452.79 and 123,115.53

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Solution

The fourth proportional to 219,916.71, 303,452.79 and 123,115.53 is: 169,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,916.71 : 303,452.79 = 123,115.53 : x
  2. Step 2: Convert to fraction form
    219,916.71/303,452.79 = 123,115.53/x
  3. Step 3: Cross multiply
    219,916.71x = 303,452.79 × 123,115.53
  4. Step 4: Simplify right side
    219,916.71x = 37,359,751,070.83
  5. Step 5: Solve for x
    x = 37,359,751,070.83/219,916.71
  6. Step 6: Final answer
    x = 169,881.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.