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Finding the Fourth Proportional to 162,249.70, 243,374.55 and 68,743.30

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Solution

The fourth proportional to 162,249.70, 243,374.55 and 68,743.30 is: 103,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,249.70 : 243,374.55 = 68,743.30 : x
  2. Step 2: Convert to fraction form
    162,249.70/243,374.55 = 68,743.30/x
  3. Step 3: Cross multiply
    162,249.70x = 243,374.55 × 68,743.30
  4. Step 4: Simplify right side
    162,249.70x = 16,730,369,703.02
  5. Step 5: Solve for x
    x = 16,730,369,703.02/162,249.70
  6. Step 6: Final answer
    x = 103,114.95

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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.