Home / 102,940.08-142,063.80-59,920.56

Finding the Fourth Proportional to 102,940.08, 142,063.80 and 59,920.56

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Solution

The fourth proportional to 102,940.08, 142,063.80 and 59,920.56 is: 82,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,940.08 : 142,063.80 = 59,920.56 : x
  2. Step 2: Convert to fraction form
    102,940.08/142,063.80 = 59,920.56/x
  3. Step 3: Cross multiply
    102,940.08x = 142,063.80 × 59,920.56
  4. Step 4: Simplify right side
    102,940.08x = 8,512,542,451.73
  5. Step 5: Solve for x
    x = 8,512,542,451.73/102,940.08
  6. Step 6: Final answer
    x = 82,694.15

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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.