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Finding the Fourth Proportional to 136,148.96, 204,223.53 and 42,662

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Solution

The fourth proportional to 136,148.96, 204,223.53 and 42,662 is: 63,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,148.96 : 204,223.53 = 42,662 : x
  2. Step 2: Convert to fraction form
    136,148.96/204,223.53 = 42,662/x
  3. Step 3: Cross multiply
    136,148.96x = 204,223.53 × 42,662
  4. Step 4: Simplify right side
    136,148.96x = 8,712,584,236.86
  5. Step 5: Solve for x
    x = 8,712,584,236.86/136,148.96
  6. Step 6: Final answer
    x = 63,993.03

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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.