Home / 138,754.20-208,140.60-48,786.14

Finding the Fourth Proportional to 138,754.20, 208,140.60 and 48,786.14

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Solution

The fourth proportional to 138,754.20, 208,140.60 and 48,786.14 is: 73,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,754.20 : 208,140.60 = 48,786.14 : x
  2. Step 2: Convert to fraction form
    138,754.20/208,140.60 = 48,786.14/x
  3. Step 3: Cross multiply
    138,754.20x = 208,140.60 × 48,786.14
  4. Step 4: Simplify right side
    138,754.20x = 10,154,376,451.28
  5. Step 5: Solve for x
    x = 10,154,376,451.28/138,754.20
  6. Step 6: Final answer
    x = 73,182.48

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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.