Home / 137,678.06-206,431.02-57,694.40

Finding the Fourth Proportional to 137,678.06, 206,431.02 and 57,694.40

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Solution

The fourth proportional to 137,678.06, 206,431.02 and 57,694.40 is: 86,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,678.06 : 206,431.02 = 57,694.40 : x
  2. Step 2: Convert to fraction form
    137,678.06/206,431.02 = 57,694.40/x
  3. Step 3: Cross multiply
    137,678.06x = 206,431.02 × 57,694.40
  4. Step 4: Simplify right side
    137,678.06x = 11,909,914,356.37
  5. Step 5: Solve for x
    x = 11,909,914,356.37/137,678.06
  6. Step 6: Final answer
    x = 86,505.54

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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.