Home / 117,320.14-161,902.97-63,605.04

Finding the Fourth Proportional to 117,320.14, 161,902.97 and 63,605.04

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Solution

The fourth proportional to 117,320.14, 161,902.97 and 63,605.04 is: 87,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,320.14 : 161,902.97 = 63,605.04 : x
  2. Step 2: Convert to fraction form
    117,320.14/161,902.97 = 63,605.04/x
  3. Step 3: Cross multiply
    117,320.14x = 161,902.97 × 63,605.04
  4. Step 4: Simplify right side
    117,320.14x = 10,297,844,882.97
  5. Step 5: Solve for x
    x = 10,297,844,882.97/117,320.14
  6. Step 6: Final answer
    x = 87,775.59

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1.5x scale

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.