Home / 132,686.96-198,563.00-82,790.55

Finding the Fourth Proportional to 132,686.96, 198,563.00 and 82,790.55

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Solution

The fourth proportional to 132,686.96, 198,563.00 and 82,790.55 is: 123,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,686.96 : 198,563.00 = 82,790.55 : x
  2. Step 2: Convert to fraction form
    132,686.96/198,563.00 = 82,790.55/x
  3. Step 3: Cross multiply
    132,686.96x = 198,563.00 × 82,790.55
  4. Step 4: Simplify right side
    132,686.96x = 16,439,139,565.70
  5. Step 5: Solve for x
    x = 16,439,139,565.70/132,686.96
  6. Step 6: Final answer
    x = 123,894.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.