Home / 102,575.56-141,535.56-77,996.44

Finding the Fourth Proportional to 102,575.56, 141,535.56 and 77,996.44

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Solution

The fourth proportional to 102,575.56, 141,535.56 and 77,996.44 is: 107,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,575.56 : 141,535.56 = 77,996.44 : x
  2. Step 2: Convert to fraction form
    102,575.56/141,535.56 = 77,996.44/x
  3. Step 3: Cross multiply
    102,575.56x = 141,535.56 × 77,996.44
  4. Step 4: Simplify right side
    102,575.56x = 11,039,269,813.41
  5. Step 5: Solve for x
    x = 11,039,269,813.41/102,575.56
  6. Step 6: Final answer
    x = 107,620.86

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1.5x scale

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.