Home / 140,692.91-194,161.10-77,031.15

Finding the Fourth Proportional to 140,692.91, 194,161.10 and 77,031.15

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Solution

The fourth proportional to 140,692.91, 194,161.10 and 77,031.15 is: 106,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,692.91 : 194,161.10 = 77,031.15 : x
  2. Step 2: Convert to fraction form
    140,692.91/194,161.10 = 77,031.15/x
  3. Step 3: Cross multiply
    140,692.91x = 194,161.10 × 77,031.15
  4. Step 4: Simplify right side
    140,692.91x = 14,956,452,433.11
  5. Step 5: Solve for x
    x = 14,956,452,433.11/140,692.91
  6. Step 6: Final answer
    x = 106,305.66

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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.