Home / 131,126.31-180,954.05-73,765.68

Finding the Fourth Proportional to 131,126.31, 180,954.05 and 73,765.68

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Solution

The fourth proportional to 131,126.31, 180,954.05 and 73,765.68 is: 101,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126.31 : 180,954.05 = 73,765.68 : x
  2. Step 2: Convert to fraction form
    131,126.31/180,954.05 = 73,765.68/x
  3. Step 3: Cross multiply
    131,126.31x = 180,954.05 × 73,765.68
  4. Step 4: Simplify right side
    131,126.31x = 13,348,197,499.60
  5. Step 5: Solve for x
    x = 13,348,197,499.60/131,126.31
  6. Step 6: Final answer
    x = 101,796.48

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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.