Home / 148,667.66-205,161.47-80,684.61

Finding the Fourth Proportional to 148,667.66, 205,161.47 and 80,684.61

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Solution

The fourth proportional to 148,667.66, 205,161.47 and 80,684.61 is: 111,344.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,667.66 : 205,161.47 = 80,684.61 : x
  2. Step 2: Convert to fraction form
    148,667.66/205,161.47 = 80,684.61/x
  3. Step 3: Cross multiply
    148,667.66x = 205,161.47 × 80,684.61
  4. Step 4: Simplify right side
    148,667.66x = 16,553,372,790.55
  5. Step 5: Solve for x
    x = 16,553,372,790.55/148,667.66
  6. Step 6: Final answer
    x = 111,344.82

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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.