Home / 203,617.05-305,352.41-70,461.15

Finding the Fourth Proportional to 203,617.05, 305,352.41 and 70,461.15

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Solution

The fourth proportional to 203,617.05, 305,352.41 and 70,461.15 is: 105,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,617.05 : 305,352.41 = 70,461.15 : x
  2. Step 2: Convert to fraction form
    203,617.05/305,352.41 = 70,461.15/x
  3. Step 3: Cross multiply
    203,617.05x = 305,352.41 × 70,461.15
  4. Step 4: Simplify right side
    203,617.05x = 21,515,481,611.57
  5. Step 5: Solve for x
    x = 21,515,481,611.57/203,617.05
  6. Step 6: Final answer
    x = 105,666.40

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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.