Home / 117,029.52-161,435.12-71,729.44

Finding the Fourth Proportional to 117,029.52, 161,435.12 and 71,729.44

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Solution

The fourth proportional to 117,029.52, 161,435.12 and 71,729.44 is: 98,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,029.52 : 161,435.12 = 71,729.44 : x
  2. Step 2: Convert to fraction form
    117,029.52/161,435.12 = 71,729.44/x
  3. Step 3: Cross multiply
    117,029.52x = 161,435.12 × 71,729.44
  4. Step 4: Simplify right side
    117,029.52x = 11,579,650,753.93
  5. Step 5: Solve for x
    x = 11,579,650,753.93/117,029.52
  6. Step 6: Final answer
    x = 98,946.41

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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.