Home / 132,841.91-183,322.69-79,129.19

Finding the Fourth Proportional to 132,841.91, 183,322.69 and 79,129.19

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Solution

The fourth proportional to 132,841.91, 183,322.69 and 79,129.19 is: 109,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,841.91 : 183,322.69 = 79,129.19 : x
  2. Step 2: Convert to fraction form
    132,841.91/183,322.69 = 79,129.19/x
  3. Step 3: Cross multiply
    132,841.91x = 183,322.69 × 79,129.19
  4. Step 4: Simplify right side
    132,841.91x = 14,506,174,853.88
  5. Step 5: Solve for x
    x = 14,506,174,853.88/132,841.91
  6. Step 6: Final answer
    x = 109,198.79

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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.