Home / 207,641.16-311,363.10-107,701.20

Finding the Fourth Proportional to 207,641.16, 311,363.10 and 107,701.20

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Solution

The fourth proportional to 207,641.16, 311,363.10 and 107,701.20 is: 161,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,641.16 : 311,363.10 = 107,701.20 : x
  2. Step 2: Convert to fraction form
    207,641.16/311,363.10 = 107,701.20/x
  3. Step 3: Cross multiply
    207,641.16x = 311,363.10 × 107,701.20
  4. Step 4: Simplify right side
    207,641.16x = 33,534,179,505.72
  5. Step 5: Solve for x
    x = 33,534,179,505.72/207,641.16
  6. Step 6: Final answer
    x = 161,500.64

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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.