Home / 207,810.55-311,585.82-87,805.41

Finding the Fourth Proportional to 207,810.55, 311,585.82 and 87,805.41

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Solution

The fourth proportional to 207,810.55, 311,585.82 and 87,805.41 is: 131,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,810.55 : 311,585.82 = 87,805.41 : x
  2. Step 2: Convert to fraction form
    207,810.55/311,585.82 = 87,805.41/x
  3. Step 3: Cross multiply
    207,810.55x = 311,585.82 × 87,805.41
  4. Step 4: Simplify right side
    207,810.55x = 27,358,920,675.29
  5. Step 5: Solve for x
    x = 27,358,920,675.29/207,810.55
  6. Step 6: Final answer
    x = 131,653.18

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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.