Home / 141,933.76-195,859.64-81,461.84

Finding the Fourth Proportional to 141,933.76, 195,859.64 and 81,461.84

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Solution

The fourth proportional to 141,933.76, 195,859.64 and 81,461.84 is: 112,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,933.76 : 195,859.64 = 81,461.84 : x
  2. Step 2: Convert to fraction form
    141,933.76/195,859.64 = 81,461.84/x
  3. Step 3: Cross multiply
    141,933.76x = 195,859.64 × 81,461.84
  4. Step 4: Simplify right side
    141,933.76x = 15,955,086,656.14
  5. Step 5: Solve for x
    x = 15,955,086,656.14/141,933.76
  6. Step 6: Final answer
    x = 112,412.20

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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.