Home / 146,717.71-202,471.27-86,290.90

Finding the Fourth Proportional to 146,717.71, 202,471.27 and 86,290.90

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Solution

The fourth proportional to 146,717.71, 202,471.27 and 86,290.90 is: 119,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,717.71 : 202,471.27 = 86,290.90 : x
  2. Step 2: Convert to fraction form
    146,717.71/202,471.27 = 86,290.90/x
  3. Step 3: Cross multiply
    146,717.71x = 202,471.27 × 86,290.90
  4. Step 4: Simplify right side
    146,717.71x = 17,471,428,112.44
  5. Step 5: Solve for x
    x = 17,471,428,112.44/146,717.71
  6. Step 6: Final answer
    x = 119,081.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.