Home / 108,223.20-149,394-65,795.28

Finding the Fourth Proportional to 108,223.20, 149,394 and 65,795.28

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Solution

The fourth proportional to 108,223.20, 149,394 and 65,795.28 is: 90,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,223.20 : 149,394 = 65,795.28 : x
  2. Step 2: Convert to fraction form
    108,223.20/149,394 = 65,795.28/x
  3. Step 3: Cross multiply
    108,223.20x = 149,394 × 65,795.28
  4. Step 4: Simplify right side
    108,223.20x = 9,829,420,060.32
  5. Step 5: Solve for x
    x = 9,829,420,060.32/108,223.20
  6. Step 6: Final answer
    x = 90,825.44

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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.