Home / 142,890.48-197,187.21-82,459.82

Finding the Fourth Proportional to 142,890.48, 197,187.21 and 82,459.82

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Solution

The fourth proportional to 142,890.48, 197,187.21 and 82,459.82 is: 113,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890.48 : 197,187.21 = 82,459.82 : x
  2. Step 2: Convert to fraction form
    142,890.48/197,187.21 = 82,459.82/x
  3. Step 3: Cross multiply
    142,890.48x = 197,187.21 × 82,459.82
  4. Step 4: Simplify right side
    142,890.48x = 16,260,022,335.87
  5. Step 5: Solve for x
    x = 16,260,022,335.87/142,890.48
  6. Step 6: Final answer
    x = 113,793.60

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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.