Home / 138,780.32-208,146.80-50,016.16

Finding the Fourth Proportional to 138,780.32, 208,146.80 and 50,016.16

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Solution

The fourth proportional to 138,780.32, 208,146.80 and 50,016.16 is: 75,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,780.32 : 208,146.80 = 50,016.16 : x
  2. Step 2: Convert to fraction form
    138,780.32/208,146.80 = 50,016.16/x
  3. Step 3: Cross multiply
    138,780.32x = 208,146.80 × 50,016.16
  4. Step 4: Simplify right side
    138,780.32x = 10,410,703,652.29
  5. Step 5: Solve for x
    x = 10,410,703,652.29/138,780.32
  6. Step 6: Final answer
    x = 75,015.71

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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.