Home / 141,948.05-195,892.68-81,530.81

Finding the Fourth Proportional to 141,948.05, 195,892.68 and 81,530.81

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Solution

The fourth proportional to 141,948.05, 195,892.68 and 81,530.81 is: 112,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,948.05 : 195,892.68 = 81,530.81 : x
  2. Step 2: Convert to fraction form
    141,948.05/195,892.68 = 81,530.81/x
  3. Step 3: Cross multiply
    141,948.05x = 195,892.68 × 81,530.81
  4. Step 4: Simplify right side
    141,948.05x = 15,971,289,668.94
  5. Step 5: Solve for x
    x = 15,971,289,668.94/141,948.05
  6. Step 6: Final answer
    x = 112,515.03

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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.