Home / 148,960.22-205,565.98-80,977.72

Finding the Fourth Proportional to 148,960.22, 205,565.98 and 80,977.72

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Solution

The fourth proportional to 148,960.22, 205,565.98 and 80,977.72 is: 111,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.22 : 205,565.98 = 80,977.72 : x
  2. Step 2: Convert to fraction form
    148,960.22/205,565.98 = 80,977.72/x
  3. Step 3: Cross multiply
    148,960.22x = 205,565.98 × 80,977.72
  4. Step 4: Simplify right side
    148,960.22x = 16,646,264,369.97
  5. Step 5: Solve for x
    x = 16,646,264,369.97/148,960.22
  6. Step 6: Final answer
    x = 111,749.73

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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.