Home / 106,428.18-146,718.29-83,727.75

Finding the Fourth Proportional to 106,428.18, 146,718.29 and 83,727.75

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Solution

The fourth proportional to 106,428.18, 146,718.29 and 83,727.75 is: 115,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428.18 : 146,718.29 = 83,727.75 : x
  2. Step 2: Convert to fraction form
    106,428.18/146,718.29 = 83,727.75/x
  3. Step 3: Cross multiply
    106,428.18x = 146,718.29 × 83,727.75
  4. Step 4: Simplify right side
    106,428.18x = 12,284,393,065.06
  5. Step 5: Solve for x
    x = 12,284,393,065.06/106,428.18
  6. Step 6: Final answer
    x = 115,424.25

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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.