Home / 155,847.57-214,969.91-108,083.49

Finding the Fourth Proportional to 155,847.57, 214,969.91 and 108,083.49

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Solution

The fourth proportional to 155,847.57, 214,969.91 and 108,083.49 is: 149,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847.57 : 214,969.91 = 108,083.49 : x
  2. Step 2: Convert to fraction form
    155,847.57/214,969.91 = 108,083.49/x
  3. Step 3: Cross multiply
    155,847.57x = 214,969.91 × 108,083.49
  4. Step 4: Simplify right side
    155,847.57x = 23,234,698,117.79
  5. Step 5: Solve for x
    x = 23,234,698,117.79/155,847.57
  6. Step 6: Final answer
    x = 149,086.05

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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.