Home / 141,536.67-195,325.28-81,118.90

Finding the Fourth Proportional to 141,536.67, 195,325.28 and 81,118.90

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Solution

The fourth proportional to 141,536.67, 195,325.28 and 81,118.90 is: 111,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,536.67 : 195,325.28 = 81,118.90 : x
  2. Step 2: Convert to fraction form
    141,536.67/195,325.28 = 81,118.90/x
  3. Step 3: Cross multiply
    141,536.67x = 195,325.28 × 81,118.90
  4. Step 4: Simplify right side
    141,536.67x = 15,844,571,855.79
  5. Step 5: Solve for x
    x = 15,844,571,855.79/141,536.67
  6. Step 6: Final answer
    x = 111,946.76

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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.