Home / 109,150.20-163,571.70-80,849.40

Finding the Fourth Proportional to 109,150.20, 163,571.70 and 80,849.40

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Solution

The fourth proportional to 109,150.20, 163,571.70 and 80,849.40 is: 121,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,150.20 : 163,571.70 = 80,849.40 : x
  2. Step 2: Convert to fraction form
    109,150.20/163,571.70 = 80,849.40/x
  3. Step 3: Cross multiply
    109,150.20x = 163,571.70 × 80,849.40
  4. Step 4: Simplify right side
    109,150.20x = 13,224,673,801.98
  5. Step 5: Solve for x
    x = 13,224,673,801.98/109,150.20
  6. Step 6: Final answer
    x = 121,160.33

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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.