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Finding the Fourth Proportional to 162,103.68, 243,039.08 and 76,667.11

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Solution

The fourth proportional to 162,103.68, 243,039.08 and 76,667.11 is: 114,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,103.68 : 243,039.08 = 76,667.11 : x
  2. Step 2: Convert to fraction form
    162,103.68/243,039.08 = 76,667.11/x
  3. Step 3: Cross multiply
    162,103.68x = 243,039.08 × 76,667.11
  4. Step 4: Simplify right side
    162,103.68x = 18,633,103,464.73
  5. Step 5: Solve for x
    x = 18,633,103,464.73/162,103.68
  6. Step 6: Final answer
    x = 114,945.59

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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.