Home / 106,427.52-146,792.78-72,375.48

Finding the Fourth Proportional to 106,427.52, 146,792.78 and 72,375.48

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Solution

The fourth proportional to 106,427.52, 146,792.78 and 72,375.48 is: 99,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,427.52 : 146,792.78 = 72,375.48 : x
  2. Step 2: Convert to fraction form
    106,427.52/146,792.78 = 72,375.48/x
  3. Step 3: Cross multiply
    106,427.52x = 146,792.78 × 72,375.48
  4. Step 4: Simplify right side
    106,427.52x = 10,624,197,551.16
  5. Step 5: Solve for x
    x = 10,624,197,551.16/106,427.52
  6. Step 6: Final answer
    x = 99,825.66

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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.