Home / 131,055.03-180,857.21-74,466.81

Finding the Fourth Proportional to 131,055.03, 180,857.21 and 74,466.81

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Solution

The fourth proportional to 131,055.03, 180,857.21 and 74,466.81 is: 102,764.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,055.03 : 180,857.21 = 74,466.81 : x
  2. Step 2: Convert to fraction form
    131,055.03/180,857.21 = 74,466.81/x
  3. Step 3: Cross multiply
    131,055.03x = 180,857.21 × 74,466.81
  4. Step 4: Simplify right side
    131,055.03x = 13,467,859,121.87
  5. Step 5: Solve for x
    x = 13,467,859,121.87/131,055.03
  6. Step 6: Final answer
    x = 102,764.92

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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.