Home / 140,636.39-194,070.74-76,961.88

Finding the Fourth Proportional to 140,636.39, 194,070.74 and 76,961.88

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Solution

The fourth proportional to 140,636.39, 194,070.74 and 76,961.88 is: 106,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,636.39 : 194,070.74 = 76,961.88 : x
  2. Step 2: Convert to fraction form
    140,636.39/194,070.74 = 76,961.88/x
  3. Step 3: Cross multiply
    140,636.39x = 194,070.74 × 76,961.88
  4. Step 4: Simplify right side
    140,636.39x = 14,936,048,618.58
  5. Step 5: Solve for x
    x = 14,936,048,618.58/140,636.39
  6. Step 6: Final answer
    x = 106,203.30

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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.