Home / 120,688.97-166,551.24-66,981.72

Finding the Fourth Proportional to 120,688.97, 166,551.24 and 66,981.72

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Solution

The fourth proportional to 120,688.97, 166,551.24 and 66,981.72 is: 92,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,688.97 : 166,551.24 = 66,981.72 : x
  2. Step 2: Convert to fraction form
    120,688.97/166,551.24 = 66,981.72/x
  3. Step 3: Cross multiply
    120,688.97x = 166,551.24 × 66,981.72
  4. Step 4: Simplify right side
    120,688.97x = 11,155,888,523.33
  5. Step 5: Solve for x
    x = 11,155,888,523.33/120,688.97
  6. Step 6: Final answer
    x = 92,435.03

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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.