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Finding the Fourth Proportional to 132,741.60, 183,169.80 and 79,028.88

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Solution

The fourth proportional to 132,741.60, 183,169.80 and 79,028.88 is: 109,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,741.60 : 183,169.80 = 79,028.88 : x
  2. Step 2: Convert to fraction form
    132,741.60/183,169.80 = 79,028.88/x
  3. Step 3: Cross multiply
    132,741.60x = 183,169.80 × 79,028.88
  4. Step 4: Simplify right side
    132,741.60x = 14,475,704,143.82
  5. Step 5: Solve for x
    x = 14,475,704,143.82/132,741.60
  6. Step 6: Final answer
    x = 109,051.75

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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.