Home / 207,899.90-311,857.05-65,746.70

Finding the Fourth Proportional to 207,899.90, 311,857.05 and 65,746.70

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Solution

The fourth proportional to 207,899.90, 311,857.05 and 65,746.70 is: 98,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,899.90 : 311,857.05 = 65,746.70 : x
  2. Step 2: Convert to fraction form
    207,899.90/311,857.05 = 65,746.70/x
  3. Step 3: Cross multiply
    207,899.90x = 311,857.05 × 65,746.70
  4. Step 4: Simplify right side
    207,899.90x = 20,503,571,909.24
  5. Step 5: Solve for x
    x = 20,503,571,909.24/207,899.90
  6. Step 6: Final answer
    x = 98,622.33

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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.