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Finding the Fourth Proportional to 162,607.20, 243,651.60 and 120,616.80

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Solution

The fourth proportional to 162,607.20, 243,651.60 and 120,616.80 is: 180,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,607.20 : 243,651.60 = 120,616.80 : x
  2. Step 2: Convert to fraction form
    162,607.20/243,651.60 = 120,616.80/x
  3. Step 3: Cross multiply
    162,607.20x = 243,651.60 × 120,616.80
  4. Step 4: Simplify right side
    162,607.20x = 29,388,476,306.88
  5. Step 5: Solve for x
    x = 29,388,476,306.88/162,607.20
  6. Step 6: Final answer
    x = 180,732.93

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1.5x scale

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.