Home / 138,665.64-207,999.07-43,896.29

Finding the Fourth Proportional to 138,665.64, 207,999.07 and 43,896.29

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Solution

The fourth proportional to 138,665.64, 207,999.07 and 43,896.29 is: 65,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,665.64 : 207,999.07 = 43,896.29 : x
  2. Step 2: Convert to fraction form
    138,665.64/207,999.07 = 43,896.29/x
  3. Step 3: Cross multiply
    138,665.64x = 207,999.07 × 43,896.29
  4. Step 4: Simplify right side
    138,665.64x = 9,130,386,866.71
  5. Step 5: Solve for x
    x = 9,130,386,866.71/138,665.64
  6. Step 6: Final answer
    x = 65,844.62

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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.