Home / 141,855.93-195,746.76-81,412.11

Finding the Fourth Proportional to 141,855.93, 195,746.76 and 81,412.11

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Solution

The fourth proportional to 141,855.93, 195,746.76 and 81,412.11 is: 112,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,855.93 : 195,746.76 = 81,412.11 : x
  2. Step 2: Convert to fraction form
    141,855.93/195,746.76 = 81,412.11/x
  3. Step 3: Cross multiply
    141,855.93x = 195,746.76 × 81,412.11
  4. Step 4: Simplify right side
    141,855.93x = 15,936,156,757.26
  5. Step 5: Solve for x
    x = 15,936,156,757.26/141,855.93
  6. Step 6: Final answer
    x = 112,340.43

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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.