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Finding the Fourth Proportional to 132,480.51, 182,821.32 and 72,049.85

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Solution

The fourth proportional to 132,480.51, 182,821.32 and 72,049.85 is: 99,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,480.51 : 182,821.32 = 72,049.85 : x
  2. Step 2: Convert to fraction form
    132,480.51/182,821.32 = 72,049.85/x
  3. Step 3: Cross multiply
    132,480.51x = 182,821.32 × 72,049.85
  4. Step 4: Simplify right side
    132,480.51x = 13,172,249,482.65
  5. Step 5: Solve for x
    x = 13,172,249,482.65/132,480.51
  6. Step 6: Final answer
    x = 99,427.83

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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.