Home / 108,787.24-150,087.90-71,083.36

Finding the Fourth Proportional to 108,787.24, 150,087.90 and 71,083.36

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Solution

The fourth proportional to 108,787.24, 150,087.90 and 71,083.36 is: 98,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,787.24 : 150,087.90 = 71,083.36 : x
  2. Step 2: Convert to fraction form
    108,787.24/150,087.90 = 71,083.36/x
  3. Step 3: Cross multiply
    108,787.24x = 150,087.90 × 71,083.36
  4. Step 4: Simplify right side
    108,787.24x = 10,668,752,227.34
  5. Step 5: Solve for x
    x = 10,668,752,227.34/108,787.24
  6. Step 6: Final answer
    x = 98,069.89

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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.