Home / 102,786.28-154,177.02-47,382.28

Finding the Fourth Proportional to 102,786.28, 154,177.02 and 47,382.28

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Solution

The fourth proportional to 102,786.28, 154,177.02 and 47,382.28 is: 71,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.28 : 154,177.02 = 47,382.28 : x
  2. Step 2: Convert to fraction form
    102,786.28/154,177.02 = 47,382.28/x
  3. Step 3: Cross multiply
    102,786.28x = 154,177.02 × 47,382.28
  4. Step 4: Simplify right side
    102,786.28x = 7,305,258,731.21
  5. Step 5: Solve for x
    x = 7,305,258,731.21/102,786.28
  6. Step 6: Final answer
    x = 71,072.31

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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.