Home / 149,176.70-205,868.89-81,196.14

Finding the Fourth Proportional to 149,176.70, 205,868.89 and 81,196.14

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Solution

The fourth proportional to 149,176.70, 205,868.89 and 81,196.14 is: 112,053.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,176.70 : 205,868.89 = 81,196.14 : x
  2. Step 2: Convert to fraction form
    149,176.70/205,868.89 = 81,196.14/x
  3. Step 3: Cross multiply
    149,176.70x = 205,868.89 × 81,196.14
  4. Step 4: Simplify right side
    149,176.70x = 16,715,758,929.58
  5. Step 5: Solve for x
    x = 16,715,758,929.58/149,176.70
  6. Step 6: Final answer
    x = 112,053.41

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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.