Home / 105,717.62-145,883.19-57,969.95

Finding the Fourth Proportional to 105,717.62, 145,883.19 and 57,969.95

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Solution

The fourth proportional to 105,717.62, 145,883.19 and 57,969.95 is: 79,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,717.62 : 145,883.19 = 57,969.95 : x
  2. Step 2: Convert to fraction form
    105,717.62/145,883.19 = 57,969.95/x
  3. Step 3: Cross multiply
    105,717.62x = 145,883.19 × 57,969.95
  4. Step 4: Simplify right side
    105,717.62x = 8,456,841,230.14
  5. Step 5: Solve for x
    x = 8,456,841,230.14/105,717.62
  6. Step 6: Final answer
    x = 79,994.62

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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.