Home / 134,141.67-185,106.20-80,399.79

Finding the Fourth Proportional to 134,141.67, 185,106.20 and 80,399.79

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Solution

The fourth proportional to 134,141.67, 185,106.20 and 80,399.79 is: 110,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,141.67 : 185,106.20 = 80,399.79 : x
  2. Step 2: Convert to fraction form
    134,141.67/185,106.20 = 80,399.79/x
  3. Step 3: Cross multiply
    134,141.67x = 185,106.20 × 80,399.79
  4. Step 4: Simplify right side
    134,141.67x = 14,882,499,205.70
  5. Step 5: Solve for x
    x = 14,882,499,205.70/134,141.67
  6. Step 6: Final answer
    x = 110,946.13

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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.