Home / 207,979.20-311,968.80-67,737.83

Finding the Fourth Proportional to 207,979.20, 311,968.80 and 67,737.83

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Solution

The fourth proportional to 207,979.20, 311,968.80 and 67,737.83 is: 101,606.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,979.20 : 311,968.80 = 67,737.83 : x
  2. Step 2: Convert to fraction form
    207,979.20/311,968.80 = 67,737.83/x
  3. Step 3: Cross multiply
    207,979.20x = 311,968.80 × 67,737.83
  4. Step 4: Simplify right side
    207,979.20x = 21,132,087,979.86
  5. Step 5: Solve for x
    x = 21,132,087,979.86/207,979.20
  6. Step 6: Final answer
    x = 101,606.74

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1.5x scale

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.