Home / 113,180.96-169,538.16-66,291.68

Finding the Fourth Proportional to 113,180.96, 169,538.16 and 66,291.68

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Solution

The fourth proportional to 113,180.96, 169,538.16 and 66,291.68 is: 99,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,180.96 : 169,538.16 = 66,291.68 : x
  2. Step 2: Convert to fraction form
    113,180.96/169,538.16 = 66,291.68/x
  3. Step 3: Cross multiply
    113,180.96x = 169,538.16 × 66,291.68
  4. Step 4: Simplify right side
    113,180.96x = 11,238,969,450.51
  5. Step 5: Solve for x
    x = 11,238,969,450.51/113,180.96
  6. Step 6: Final answer
    x = 99,300.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.