Home / 140,720.05-194,193.34-77,057.29

Finding the Fourth Proportional to 140,720.05, 194,193.34 and 77,057.29

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Solution

The fourth proportional to 140,720.05, 194,193.34 and 77,057.29 is: 106,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,720.05 : 194,193.34 = 77,057.29 : x
  2. Step 2: Convert to fraction form
    140,720.05/194,193.34 = 77,057.29/x
  3. Step 3: Cross multiply
    140,720.05x = 194,193.34 × 77,057.29
  4. Step 4: Simplify right side
    140,720.05x = 14,964,012,516.45
  5. Step 5: Solve for x
    x = 14,964,012,516.45/140,720.05
  6. Step 6: Final answer
    x = 106,338.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.