Home / 117,443.28-161,847.98-115,284.02

Finding the Fourth Proportional to 117,443.28, 161,847.98 and 115,284.02

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Solution

The fourth proportional to 117,443.28, 161,847.98 and 115,284.02 is: 158,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,443.28 : 161,847.98 = 115,284.02 : x
  2. Step 2: Convert to fraction form
    117,443.28/161,847.98 = 115,284.02/x
  3. Step 3: Cross multiply
    117,443.28x = 161,847.98 × 115,284.02
  4. Step 4: Simplify right side
    117,443.28x = 18,658,485,763.28
  5. Step 5: Solve for x
    x = 18,658,485,763.28/117,443.28
  6. Step 6: Final answer
    x = 158,872.31

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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.