Home / 105,743.66-145,928.52-57,996.88

Finding the Fourth Proportional to 105,743.66, 145,928.52 and 57,996.88

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Solution

The fourth proportional to 105,743.66, 145,928.52 and 57,996.88 is: 80,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.66 : 145,928.52 = 57,996.88 : x
  2. Step 2: Convert to fraction form
    105,743.66/145,928.52 = 57,996.88/x
  3. Step 3: Cross multiply
    105,743.66x = 145,928.52 × 57,996.88
  4. Step 4: Simplify right side
    105,743.66x = 8,463,398,863.02
  5. Step 5: Solve for x
    x = 8,463,398,863.02/105,743.66
  6. Step 6: Final answer
    x = 80,036.94

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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.