Home / 113,286.26-156,317.54-65,544.05

Finding the Fourth Proportional to 113,286.26, 156,317.54 and 65,544.05

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Solution

The fourth proportional to 113,286.26, 156,317.54 and 65,544.05 is: 90,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,286.26 : 156,317.54 = 65,544.05 : x
  2. Step 2: Convert to fraction form
    113,286.26/156,317.54 = 65,544.05/x
  3. Step 3: Cross multiply
    113,286.26x = 156,317.54 × 65,544.05
  4. Step 4: Simplify right side
    113,286.26x = 10,245,684,720.71
  5. Step 5: Solve for x
    x = 10,245,684,720.71/113,286.26
  6. Step 6: Final answer
    x = 90,440.66

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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.