Home / 142,471.76-196,563.27-82,041.10

Finding the Fourth Proportional to 142,471.76, 196,563.27 and 82,041.10

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Solution

The fourth proportional to 142,471.76, 196,563.27 and 82,041.10 is: 113,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,471.76 : 196,563.27 = 82,041.10 : x
  2. Step 2: Convert to fraction form
    142,471.76/196,563.27 = 82,041.10/x
  3. Step 3: Cross multiply
    142,471.76x = 196,563.27 × 82,041.10
  4. Step 4: Simplify right side
    142,471.76x = 16,126,266,604.09
  5. Step 5: Solve for x
    x = 16,126,266,604.09/142,471.76
  6. Step 6: Final answer
    x = 113,189.22

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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.