Home / 139,249.87-192,164.65-75,587.66

Finding the Fourth Proportional to 139,249.87, 192,164.65 and 75,587.66

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Solution

The fourth proportional to 139,249.87, 192,164.65 and 75,587.66 is: 104,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,249.87 : 192,164.65 = 75,587.66 : x
  2. Step 2: Convert to fraction form
    139,249.87/192,164.65 = 75,587.66/x
  3. Step 3: Cross multiply
    139,249.87x = 192,164.65 × 75,587.66
  4. Step 4: Simplify right side
    139,249.87x = 14,525,277,305.15
  5. Step 5: Solve for x
    x = 14,525,277,305.15/139,249.87
  6. Step 6: Final answer
    x = 104,310.89

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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.