Home / 117,261.13-161,954.01-79,469.77

Finding the Fourth Proportional to 117,261.13, 161,954.01 and 79,469.77

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Solution

The fourth proportional to 117,261.13, 161,954.01 and 79,469.77 is: 109,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,261.13 : 161,954.01 = 79,469.77 : x
  2. Step 2: Convert to fraction form
    117,261.13/161,954.01 = 79,469.77/x
  3. Step 3: Cross multiply
    117,261.13x = 161,954.01 × 79,469.77
  4. Step 4: Simplify right side
    117,261.13x = 12,870,447,925.28
  5. Step 5: Solve for x
    x = 12,870,447,925.28/117,261.13
  6. Step 6: Final answer
    x = 109,758.86

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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.