Home / 143,180.11-197,564.84-82,756.40

Finding the Fourth Proportional to 143,180.11, 197,564.84 and 82,756.40

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Solution

The fourth proportional to 143,180.11, 197,564.84 and 82,756.40 is: 114,190.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,180.11 : 197,564.84 = 82,756.40 : x
  2. Step 2: Convert to fraction form
    143,180.11/197,564.84 = 82,756.40/x
  3. Step 3: Cross multiply
    143,180.11x = 197,564.84 × 82,756.40
  4. Step 4: Simplify right side
    143,180.11x = 16,349,753,833.71
  5. Step 5: Solve for x
    x = 16,349,753,833.71/143,180.11
  6. Step 6: Final answer
    x = 114,190.12

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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.