Home / 117,137.33-161,648.83-63,421.22

Finding the Fourth Proportional to 117,137.33, 161,648.83 and 63,421.22

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Solution

The fourth proportional to 117,137.33, 161,648.83 and 63,421.22 is: 87,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,137.33 : 161,648.83 = 63,421.22 : x
  2. Step 2: Convert to fraction form
    117,137.33/161,648.83 = 63,421.22/x
  3. Step 3: Cross multiply
    117,137.33x = 161,648.83 × 63,421.22
  4. Step 4: Simplify right side
    117,137.33x = 10,251,966,010.17
  5. Step 5: Solve for x
    x = 10,251,966,010.17/117,137.33
  6. Step 6: Final answer
    x = 87,520.91

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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.