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Finding the Fourth Proportional to 132,477.40, 199,117.58 and 87,651.65

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Solution

The fourth proportional to 132,477.40, 199,117.58 and 87,651.65 is: 131,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,477.40 : 199,117.58 = 87,651.65 : x
  2. Step 2: Convert to fraction form
    132,477.40/199,117.58 = 87,651.65/x
  3. Step 3: Cross multiply
    132,477.40x = 199,117.58 × 87,651.65
  4. Step 4: Simplify right side
    132,477.40x = 17,452,984,490.54
  5. Step 5: Solve for x
    x = 17,452,984,490.54/132,477.40
  6. Step 6: Final answer
    x = 131,743.11

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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.