Home / 97,617.60-134,720.64-55,183.68

Finding the Fourth Proportional to 97,617.60, 134,720.64 and 55,183.68

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Solution

The fourth proportional to 97,617.60, 134,720.64 and 55,183.68 is: 76,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,617.60 : 134,720.64 = 55,183.68 : x
  2. Step 2: Convert to fraction form
    97,617.60/134,720.64 = 55,183.68/x
  3. Step 3: Cross multiply
    97,617.60x = 134,720.64 × 55,183.68
  4. Step 4: Simplify right side
    97,617.60x = 7,434,380,687.16
  5. Step 5: Solve for x
    x = 7,434,380,687.16/97,617.60
  6. Step 6: Final answer
    x = 76,158.20

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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.