Home / 162,634.20-243,692.10-120,643.80

Finding the Fourth Proportional to 162,634.20, 243,692.10 and 120,643.80

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Solution

The fourth proportional to 162,634.20, 243,692.10 and 120,643.80 is: 180,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,634.20 : 243,692.10 = 120,643.80 : x
  2. Step 2: Convert to fraction form
    162,634.20/243,692.10 = 120,643.80/x
  3. Step 3: Cross multiply
    162,634.20x = 243,692.10 × 120,643.80
  4. Step 4: Simplify right side
    162,634.20x = 29,399,940,973.98
  5. Step 5: Solve for x
    x = 29,399,940,973.98/162,634.20
  6. Step 6: Final answer
    x = 180,773.42

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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.