Home / 125,972.20-188,699.10-63,677.80

Finding the Fourth Proportional to 125,972.20, 188,699.10 and 63,677.80

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Solution

The fourth proportional to 125,972.20, 188,699.10 and 63,677.80 is: 95,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,972.20 : 188,699.10 = 63,677.80 : x
  2. Step 2: Convert to fraction form
    125,972.20/188,699.10 = 63,677.80/x
  3. Step 3: Cross multiply
    125,972.20x = 188,699.10 × 63,677.80
  4. Step 4: Simplify right side
    125,972.20x = 12,015,943,549.98
  5. Step 5: Solve for x
    x = 12,015,943,549.98/125,972.20
  6. Step 6: Final answer
    x = 95,385.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.