Home / 106,997.12-147,643.42-61,674.56

Finding the Fourth Proportional to 106,997.12, 147,643.42 and 61,674.56

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Solution

The fourth proportional to 106,997.12, 147,643.42 and 61,674.56 is: 85,103.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,997.12 : 147,643.42 = 61,674.56 : x
  2. Step 2: Convert to fraction form
    106,997.12/147,643.42 = 61,674.56/x
  3. Step 3: Cross multiply
    106,997.12x = 147,643.42 × 61,674.56
  4. Step 4: Simplify right side
    106,997.12x = 9,105,842,965.40
  5. Step 5: Solve for x
    x = 9,105,842,965.40/106,997.12
  6. Step 6: Final answer
    x = 85,103.63

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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.