Home / 131,072.31-180,879.30-74,494.62

Finding the Fourth Proportional to 131,072.31, 180,879.30 and 74,494.62

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Solution

The fourth proportional to 131,072.31, 180,879.30 and 74,494.62 is: 102,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,072.31 : 180,879.30 = 74,494.62 : x
  2. Step 2: Convert to fraction form
    131,072.31/180,879.30 = 74,494.62/x
  3. Step 3: Cross multiply
    131,072.31x = 180,879.30 × 74,494.62
  4. Step 4: Simplify right side
    131,072.31x = 13,474,534,719.37
  5. Step 5: Solve for x
    x = 13,474,534,719.37/131,072.31
  6. Step 6: Final answer
    x = 102,802.30

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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.