Home / 102,000.14-140,757.41-56,676.97

Finding the Fourth Proportional to 102,000.14, 140,757.41 and 56,676.97

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Solution

The fourth proportional to 102,000.14, 140,757.41 and 56,676.97 is: 78,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.14 : 140,757.41 = 56,676.97 : x
  2. Step 2: Convert to fraction form
    102,000.14/140,757.41 = 56,676.97/x
  3. Step 3: Cross multiply
    102,000.14x = 140,757.41 × 56,676.97
  4. Step 4: Simplify right side
    102,000.14x = 7,977,703,029.73
  5. Step 5: Solve for x
    x = 7,977,703,029.73/102,000.14
  6. Step 6: Final answer
    x = 78,212.66

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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.