Home / 104,979.71-157,338.35-82,705.12

Finding the Fourth Proportional to 104,979.71, 157,338.35 and 82,705.12

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Solution

The fourth proportional to 104,979.71, 157,338.35 and 82,705.12 is: 123,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,979.71 : 157,338.35 = 82,705.12 : x
  2. Step 2: Convert to fraction form
    104,979.71/157,338.35 = 82,705.12/x
  3. Step 3: Cross multiply
    104,979.71x = 157,338.35 × 82,705.12
  4. Step 4: Simplify right side
    104,979.71x = 13,012,686,620.62
  5. Step 5: Solve for x
    x = 13,012,686,620.62/104,979.71
  6. Step 6: Final answer
    x = 123,954.30

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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.