Home / 104,540.67-145,006.32-100,956.21

Finding the Fourth Proportional to 104,540.67, 145,006.32 and 100,956.21

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Solution

The fourth proportional to 104,540.67, 145,006.32 and 100,956.21 is: 140,034.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,540.67 : 145,006.32 = 100,956.21 : x
  2. Step 2: Convert to fraction form
    104,540.67/145,006.32 = 100,956.21/x
  3. Step 3: Cross multiply
    104,540.67x = 145,006.32 × 100,956.21
  4. Step 4: Simplify right side
    104,540.67x = 14,639,288,493.25
  5. Step 5: Solve for x
    x = 14,639,288,493.25/104,540.67
  6. Step 6: Final answer
    x = 140,034.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.