Home / 138,845.10-208,267.65-50,112.30

Finding the Fourth Proportional to 138,845.10, 208,267.65 and 50,112.30

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Solution

The fourth proportional to 138,845.10, 208,267.65 and 50,112.30 is: 75,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,845.10 : 208,267.65 = 50,112.30 : x
  2. Step 2: Convert to fraction form
    138,845.10/208,267.65 = 50,112.30/x
  3. Step 3: Cross multiply
    138,845.10x = 208,267.65 × 50,112.30
  4. Step 4: Simplify right side
    138,845.10x = 10,436,770,957.10
  5. Step 5: Solve for x
    x = 10,436,770,957.10/138,845.10
  6. Step 6: Final answer
    x = 75,168.45

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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.