Home / 207,739.59-311,603.91-65,579.12

Finding the Fourth Proportional to 207,739.59, 311,603.91 and 65,579.12

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Solution

The fourth proportional to 207,739.59, 311,603.91 and 65,579.12 is: 98,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,739.59 : 311,603.91 = 65,579.12 : x
  2. Step 2: Convert to fraction form
    207,739.59/311,603.91 = 65,579.12/x
  3. Step 3: Cross multiply
    207,739.59x = 311,603.91 × 65,579.12
  4. Step 4: Simplify right side
    207,739.59x = 20,434,709,939.82
  5. Step 5: Solve for x
    x = 20,434,709,939.82/207,739.59
  6. Step 6: Final answer
    x = 98,366.95

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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.