Home / 164,905.92-247,039.20-129,672

Finding the Fourth Proportional to 164,905.92, 247,039.20 and 129,672

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Solution

The fourth proportional to 164,905.92, 247,039.20 and 129,672 is: 194,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,905.92 : 247,039.20 = 129,672 : x
  2. Step 2: Convert to fraction form
    164,905.92/247,039.20 = 129,672/x
  3. Step 3: Cross multiply
    164,905.92x = 247,039.20 × 129,672
  4. Step 4: Simplify right side
    164,905.92x = 32,034,067,142.40
  5. Step 5: Solve for x
    x = 32,034,067,142.40/164,905.92
  6. Step 6: Final answer
    x = 194,256.62

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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.