Home / 105,144.88-157,735.14-45,979.24

Finding the Fourth Proportional to 105,144.88, 157,735.14 and 45,979.24

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Solution

The fourth proportional to 105,144.88, 157,735.14 and 45,979.24 is: 68,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,144.88 : 157,735.14 = 45,979.24 : x
  2. Step 2: Convert to fraction form
    105,144.88/157,735.14 = 45,979.24/x
  3. Step 3: Cross multiply
    105,144.88x = 157,735.14 × 45,979.24
  4. Step 4: Simplify right side
    105,144.88x = 7,252,541,858.49
  5. Step 5: Solve for x
    x = 7,252,541,858.49/105,144.88
  6. Step 6: Final answer
    x = 68,976.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.