Home / 103,179.44-142,393.74-57,872.36

Finding the Fourth Proportional to 103,179.44, 142,393.74 and 57,872.36

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Solution

The fourth proportional to 103,179.44, 142,393.74 and 57,872.36 is: 79,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179.44 : 142,393.74 = 57,872.36 : x
  2. Step 2: Convert to fraction form
    103,179.44/142,393.74 = 57,872.36/x
  3. Step 3: Cross multiply
    103,179.44x = 142,393.74 × 57,872.36
  4. Step 4: Simplify right side
    103,179.44x = 8,240,661,783.03
  5. Step 5: Solve for x
    x = 8,240,661,783.03/103,179.44
  6. Step 6: Final answer
    x = 79,867.29

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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.