Home / 149,759.55-206,676.62-81,782.85

Finding the Fourth Proportional to 149,759.55, 206,676.62 and 81,782.85

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Solution

The fourth proportional to 149,759.55, 206,676.62 and 81,782.85 is: 112,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,759.55 : 206,676.62 = 81,782.85 : x
  2. Step 2: Convert to fraction form
    149,759.55/206,676.62 = 81,782.85/x
  3. Step 3: Cross multiply
    149,759.55x = 206,676.62 × 81,782.85
  4. Step 4: Simplify right side
    149,759.55x = 16,902,602,603.05
  5. Step 5: Solve for x
    x = 16,902,602,603.05/149,759.55
  6. Step 6: Final answer
    x = 112,864.94

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1.5x scale

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.