Home / 141,834.40-195,735.84-81,416.08

Finding the Fourth Proportional to 141,834.40, 195,735.84 and 81,416.08

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Solution

The fourth proportional to 141,834.40, 195,735.84 and 81,416.08 is: 112,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,834.40 : 195,735.84 = 81,416.08 : x
  2. Step 2: Convert to fraction form
    141,834.40/195,735.84 = 81,416.08/x
  3. Step 3: Cross multiply
    141,834.40x = 195,735.84 × 81,416.08
  4. Step 4: Simplify right side
    141,834.40x = 15,936,044,808.31
  5. Step 5: Solve for x
    x = 15,936,044,808.31/141,834.40
  6. Step 6: Final answer
    x = 112,356.70

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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.