Home / 173,899.90-260,849.85-85,107.70

Finding the Fourth Proportional to 173,899.90, 260,849.85 and 85,107.70

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Solution

The fourth proportional to 173,899.90, 260,849.85 and 85,107.70 is: 127,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.90 : 260,849.85 = 85,107.70 : x
  2. Step 2: Convert to fraction form
    173,899.90/260,849.85 = 85,107.70/x
  3. Step 3: Cross multiply
    173,899.90x = 260,849.85 × 85,107.70
  4. Step 4: Simplify right side
    173,899.90x = 22,200,330,778.85
  5. Step 5: Solve for x
    x = 22,200,330,778.85/173,899.90
  6. Step 6: Final answer
    x = 127,661.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.