Home / 132,017.42-197,739.30-81,261.74

Finding the Fourth Proportional to 132,017.42, 197,739.30 and 81,261.74

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Solution

The fourth proportional to 132,017.42, 197,739.30 and 81,261.74 is: 121,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,017.42 : 197,739.30 = 81,261.74 : x
  2. Step 2: Convert to fraction form
    132,017.42/197,739.30 = 81,261.74/x
  3. Step 3: Cross multiply
    132,017.42x = 197,739.30 × 81,261.74
  4. Step 4: Simplify right side
    132,017.42x = 16,068,639,584.38
  5. Step 5: Solve for x
    x = 16,068,639,584.38/132,017.42
  6. Step 6: Final answer
    x = 121,716.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.