Home / 113,045.41-169,568.12-66,272.77

Finding the Fourth Proportional to 113,045.41, 169,568.12 and 66,272.77

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Solution

The fourth proportional to 113,045.41, 169,568.12 and 66,272.77 is: 99,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,045.41 : 169,568.12 = 66,272.77 : x
  2. Step 2: Convert to fraction form
    113,045.41/169,568.12 = 66,272.77/x
  3. Step 3: Cross multiply
    113,045.41x = 169,568.12 × 66,272.77
  4. Step 4: Simplify right side
    113,045.41x = 11,237,749,016.09
  5. Step 5: Solve for x
    x = 11,237,749,016.09/113,045.41
  6. Step 6: Final answer
    x = 99,409.16

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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.