Home / 105,310.44-157,990.36-72,046.16

Finding the Fourth Proportional to 105,310.44, 157,990.36 and 72,046.16

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Solution

The fourth proportional to 105,310.44, 157,990.36 and 72,046.16 is: 108,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,310.44 : 157,990.36 = 72,046.16 : x
  2. Step 2: Convert to fraction form
    105,310.44/157,990.36 = 72,046.16/x
  3. Step 3: Cross multiply
    105,310.44x = 157,990.36 × 72,046.16
  4. Step 4: Simplify right side
    105,310.44x = 11,382,598,755.02
  5. Step 5: Solve for x
    x = 11,382,598,755.02/105,310.44
  6. Step 6: Final answer
    x = 108,086.14

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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.