Home / 105,687.45-145,849.88-60,371.43

Finding the Fourth Proportional to 105,687.45, 145,849.88 and 60,371.43

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Solution

The fourth proportional to 105,687.45, 145,849.88 and 60,371.43 is: 83,313.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,687.45 : 145,849.88 = 60,371.43 : x
  2. Step 2: Convert to fraction form
    105,687.45/145,849.88 = 60,371.43/x
  3. Step 3: Cross multiply
    105,687.45x = 145,849.88 × 60,371.43
  4. Step 4: Simplify right side
    105,687.45x = 8,805,165,519.07
  5. Step 5: Solve for x
    x = 8,805,165,519.07/105,687.45
  6. Step 6: Final answer
    x = 83,313.26

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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.