Home / 142,603.32-196,795.23-82,163.76

Finding the Fourth Proportional to 142,603.32, 196,795.23 and 82,163.76

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Solution

The fourth proportional to 142,603.32, 196,795.23 and 82,163.76 is: 113,387.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,603.32 : 196,795.23 = 82,163.76 : x
  2. Step 2: Convert to fraction form
    142,603.32/196,795.23 = 82,163.76/x
  3. Step 3: Cross multiply
    142,603.32x = 196,795.23 × 82,163.76
  4. Step 4: Simplify right side
    142,603.32x = 16,169,436,046.86
  5. Step 5: Solve for x
    x = 16,169,436,046.86/142,603.32
  6. Step 6: Final answer
    x = 113,387.51

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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.