Home / 113,350.21-156,442.86-65,629.87

Finding the Fourth Proportional to 113,350.21, 156,442.86 and 65,629.87

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Solution

The fourth proportional to 113,350.21, 156,442.86 and 65,629.87 is: 90,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,350.21 : 156,442.86 = 65,629.87 : x
  2. Step 2: Convert to fraction form
    113,350.21/156,442.86 = 65,629.87/x
  3. Step 3: Cross multiply
    113,350.21x = 156,442.86 × 65,629.87
  4. Step 4: Simplify right side
    113,350.21x = 10,267,324,173.12
  5. Step 5: Solve for x
    x = 10,267,324,173.12/113,350.21
  6. Step 6: Final answer
    x = 90,580.55

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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.