Home / 117,103.85-161,603.26-63,389.31

Finding the Fourth Proportional to 117,103.85, 161,603.26 and 63,389.31

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Solution

The fourth proportional to 117,103.85, 161,603.26 and 63,389.31 is: 87,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,103.85 : 161,603.26 = 63,389.31 : x
  2. Step 2: Convert to fraction form
    117,103.85/161,603.26 = 63,389.31/x
  3. Step 3: Cross multiply
    117,103.85x = 161,603.26 × 63,389.31
  4. Step 4: Simplify right side
    117,103.85x = 10,243,919,145.15
  5. Step 5: Solve for x
    x = 10,243,919,145.15/117,103.85
  6. Step 6: Final answer
    x = 87,477.22

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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.