Home / 132,891.53-183,383.55-72,461.69

Finding the Fourth Proportional to 132,891.53, 183,383.55 and 72,461.69

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Solution

The fourth proportional to 132,891.53, 183,383.55 and 72,461.69 is: 99,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,891.53 : 183,383.55 = 72,461.69 : x
  2. Step 2: Convert to fraction form
    132,891.53/183,383.55 = 72,461.69/x
  3. Step 3: Cross multiply
    132,891.53x = 183,383.55 × 72,461.69
  4. Step 4: Simplify right side
    132,891.53x = 13,288,281,034.28
  5. Step 5: Solve for x
    x = 13,288,281,034.28/132,891.53
  6. Step 6: Final answer
    x = 99,993.44

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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.