Home / 132,688.96-198,565.98-82,792.56

Finding the Fourth Proportional to 132,688.96, 198,565.98 and 82,792.56

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Solution

The fourth proportional to 132,688.96, 198,565.98 and 82,792.56 is: 123,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,688.96 : 198,565.98 = 82,792.56 : x
  2. Step 2: Convert to fraction form
    132,688.96/198,565.98 = 82,792.56/x
  3. Step 3: Cross multiply
    132,688.96x = 198,565.98 × 82,792.56
  4. Step 4: Simplify right side
    132,688.96x = 16,439,785,813.11
  5. Step 5: Solve for x
    x = 16,439,785,813.11/132,688.96
  6. Step 6: Final answer
    x = 123,897.16

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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.