Home / 108,815.85-149,918.85-84,202.04

Finding the Fourth Proportional to 108,815.85, 149,918.85 and 84,202.04

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Solution

The fourth proportional to 108,815.85, 149,918.85 and 84,202.04 is: 116,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,815.85 : 149,918.85 = 84,202.04 : x
  2. Step 2: Convert to fraction form
    108,815.85/149,918.85 = 84,202.04/x
  3. Step 3: Cross multiply
    108,815.85x = 149,918.85 × 84,202.04
  4. Step 4: Simplify right side
    108,815.85x = 12,623,472,254.86
  5. Step 5: Solve for x
    x = 12,623,472,254.86/108,815.85
  6. Step 6: Final answer
    x = 116,007.66

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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.