Home / 132,141.12-198,155.79-53,234.16

Finding the Fourth Proportional to 132,141.12, 198,155.79 and 53,234.16

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Solution

The fourth proportional to 132,141.12, 198,155.79 and 53,234.16 is: 79,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,141.12 : 198,155.79 = 53,234.16 : x
  2. Step 2: Convert to fraction form
    132,141.12/198,155.79 = 53,234.16/x
  3. Step 3: Cross multiply
    132,141.12x = 198,155.79 × 53,234.16
  4. Step 4: Simplify right side
    132,141.12x = 10,548,657,029.79
  5. Step 5: Solve for x
    x = 10,548,657,029.79/132,141.12
  6. Step 6: Final answer
    x = 79,828.72

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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.