Home / 140,174.10-193,434.84-76,511.88

Finding the Fourth Proportional to 140,174.10, 193,434.84 and 76,511.88

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Solution

The fourth proportional to 140,174.10, 193,434.84 and 76,511.88 is: 105,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,174.10 : 193,434.84 = 76,511.88 : x
  2. Step 2: Convert to fraction form
    140,174.10/193,434.84 = 76,511.88/x
  3. Step 3: Cross multiply
    140,174.10x = 193,434.84 × 76,511.88
  4. Step 4: Simplify right side
    140,174.10x = 14,800,063,265.90
  5. Step 5: Solve for x
    x = 14,800,063,265.90/140,174.10
  6. Step 6: Final answer
    x = 105,583.44

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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.