Home / 149,553.12-206,370-85,884.96

Finding the Fourth Proportional to 149,553.12, 206,370 and 85,884.96

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Solution

The fourth proportional to 149,553.12, 206,370 and 85,884.96 is: 118,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,553.12 : 206,370 = 85,884.96 : x
  2. Step 2: Convert to fraction form
    149,553.12/206,370 = 85,884.96/x
  3. Step 3: Cross multiply
    149,553.12x = 206,370 × 85,884.96
  4. Step 4: Simplify right side
    149,553.12x = 17,724,079,195.20
  5. Step 5: Solve for x
    x = 17,724,079,195.20/149,553.12
  6. Step 6: Final answer
    x = 118,513.60

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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.