Home / 148,778.42-205,313.59-80,794.92

Finding the Fourth Proportional to 148,778.42, 205,313.59 and 80,794.92

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Solution

The fourth proportional to 148,778.42, 205,313.59 and 80,794.92 is: 111,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,778.42 : 205,313.59 = 80,794.92 : x
  2. Step 2: Convert to fraction form
    148,778.42/205,313.59 = 80,794.92/x
  3. Step 3: Cross multiply
    148,778.42x = 205,313.59 × 80,794.92
  4. Step 4: Simplify right side
    148,778.42x = 16,588,294,340.52
  5. Step 5: Solve for x
    x = 16,588,294,340.52/148,778.42
  6. Step 6: Final answer
    x = 111,496.64

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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.