Home / 141,216.50-194,896.05-81,600.50

Finding the Fourth Proportional to 141,216.50, 194,896.05 and 81,600.50

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Solution

The fourth proportional to 141,216.50, 194,896.05 and 81,600.50 is: 112,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,216.50 : 194,896.05 = 81,600.50 : x
  2. Step 2: Convert to fraction form
    141,216.50/194,896.05 = 81,600.50/x
  3. Step 3: Cross multiply
    141,216.50x = 194,896.05 × 81,600.50
  4. Step 4: Simplify right side
    141,216.50x = 15,903,615,128.03
  5. Step 5: Solve for x
    x = 15,903,615,128.03/141,216.50
  6. Step 6: Final answer
    x = 112,618.68

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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.