Home / 142,579.23-196,803.17-82,190.26

Finding the Fourth Proportional to 142,579.23, 196,803.17 and 82,190.26

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Solution

The fourth proportional to 142,579.23, 196,803.17 and 82,190.26 is: 113,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,579.23 : 196,803.17 = 82,190.26 : x
  2. Step 2: Convert to fraction form
    142,579.23/196,803.17 = 82,190.26/x
  3. Step 3: Cross multiply
    142,579.23x = 196,803.17 × 82,190.26
  4. Step 4: Simplify right side
    142,579.23x = 16,175,303,711.12
  5. Step 5: Solve for x
    x = 16,175,303,711.12/142,579.23
  6. Step 6: Final answer
    x = 113,447.83

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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.