Home / 106,436.68-146,951.06-66,205.16

Finding the Fourth Proportional to 106,436.68, 146,951.06 and 66,205.16

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Solution

The fourth proportional to 106,436.68, 146,951.06 and 66,205.16 is: 91,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,436.68 : 146,951.06 = 66,205.16 : x
  2. Step 2: Convert to fraction form
    106,436.68/146,951.06 = 66,205.16/x
  3. Step 3: Cross multiply
    106,436.68x = 146,951.06 × 66,205.16
  4. Step 4: Simplify right side
    106,436.68x = 9,728,918,439.47
  5. Step 5: Solve for x
    x = 9,728,918,439.47/106,436.68
  6. Step 6: Final answer
    x = 91,405.69

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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.