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Finding the Fourth Proportional to 162,410.86, 243,657.81 and 67,609.53

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Solution

The fourth proportional to 162,410.86, 243,657.81 and 67,609.53 is: 101,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,410.86 : 243,657.81 = 67,609.53 : x
  2. Step 2: Convert to fraction form
    162,410.86/243,657.81 = 67,609.53/x
  3. Step 3: Cross multiply
    162,410.86x = 243,657.81 × 67,609.53
  4. Step 4: Simplify right side
    162,410.86x = 16,473,590,014.93
  5. Step 5: Solve for x
    x = 16,473,590,014.93/162,410.86
  6. Step 6: Final answer
    x = 101,431.58

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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.