Home / 138,906.99-208,380.35-42,852.33

Finding the Fourth Proportional to 138,906.99, 208,380.35 and 42,852.33

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Solution

The fourth proportional to 138,906.99, 208,380.35 and 42,852.33 is: 64,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,906.99 : 208,380.35 = 42,852.33 : x
  2. Step 2: Convert to fraction form
    138,906.99/208,380.35 = 42,852.33/x
  3. Step 3: Cross multiply
    138,906.99x = 208,380.35 × 42,852.33
  4. Step 4: Simplify right side
    138,906.99x = 8,929,583,523.72
  5. Step 5: Solve for x
    x = 8,929,583,523.72/138,906.99
  6. Step 6: Final answer
    x = 64,284.62

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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.