Home / 207,376.56-311,114.25-67,135.19

Finding the Fourth Proportional to 207,376.56, 311,114.25 and 67,135.19

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Solution

The fourth proportional to 207,376.56, 311,114.25 and 67,135.19 is: 100,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,376.56 : 311,114.25 = 67,135.19 : x
  2. Step 2: Convert to fraction form
    207,376.56/311,114.25 = 67,135.19/x
  3. Step 3: Cross multiply
    207,376.56x = 311,114.25 × 67,135.19
  4. Step 4: Simplify right side
    207,376.56x = 20,886,712,729.89
  5. Step 5: Solve for x
    x = 20,886,712,729.89/207,376.56
  6. Step 6: Final answer
    x = 100,718.77

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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.