Home / 207,445.25-311,039.00-87,440.45

Finding the Fourth Proportional to 207,445.25, 311,039.00 and 87,440.45

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Solution

The fourth proportional to 207,445.25, 311,039.00 and 87,440.45 is: 131,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,445.25 : 311,039.00 = 87,440.45 : x
  2. Step 2: Convert to fraction form
    207,445.25/311,039.00 = 87,440.45/x
  3. Step 3: Cross multiply
    207,445.25x = 311,039.00 × 87,440.45
  4. Step 4: Simplify right side
    207,445.25x = 27,197,390,467.95
  5. Step 5: Solve for x
    x = 27,197,390,467.95/207,445.25
  6. Step 6: Final answer
    x = 131,106.36

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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.