Home / 207,837.10-311,847.45-101,161.90

Finding the Fourth Proportional to 207,837.10, 311,847.45 and 101,161.90

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Solution

The fourth proportional to 207,837.10, 311,847.45 and 101,161.90 is: 151,787.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,837.10 : 311,847.45 = 101,161.90 : x
  2. Step 2: Convert to fraction form
    207,837.10/311,847.45 = 101,161.90/x
  3. Step 3: Cross multiply
    207,837.10x = 311,847.45 × 101,161.90
  4. Step 4: Simplify right side
    207,837.10x = 31,547,080,552.16
  5. Step 5: Solve for x
    x = 31,547,080,552.16/207,837.10
  6. Step 6: Final answer
    x = 151,787.53

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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.