Home / 105,422.73-145,469.03-62,972.25

Finding the Fourth Proportional to 105,422.73, 145,469.03 and 62,972.25

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Solution

The fourth proportional to 105,422.73, 145,469.03 and 62,972.25 is: 86,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,422.73 : 145,469.03 = 62,972.25 : x
  2. Step 2: Convert to fraction form
    105,422.73/145,469.03 = 62,972.25/x
  3. Step 3: Cross multiply
    105,422.73x = 145,469.03 × 62,972.25
  4. Step 4: Simplify right side
    105,422.73x = 9,160,511,809.56
  5. Step 5: Solve for x
    x = 9,160,511,809.56/105,422.73
  6. Step 6: Final answer
    x = 86,893.14

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1.5x scale

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.