Home / 102,529.56-141,486.84-57,205.20

Finding the Fourth Proportional to 102,529.56, 141,486.84 and 57,205.20

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Solution

The fourth proportional to 102,529.56, 141,486.84 and 57,205.20 is: 78,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,529.56 : 141,486.84 = 57,205.20 : x
  2. Step 2: Convert to fraction form
    102,529.56/141,486.84 = 57,205.20/x
  3. Step 3: Cross multiply
    102,529.56x = 141,486.84 × 57,205.20
  4. Step 4: Simplify right side
    102,529.56x = 8,093,782,979.57
  5. Step 5: Solve for x
    x = 8,093,782,979.57/102,529.56
  6. Step 6: Final answer
    x = 78,940.97

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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.