Home / 188,538.42-260,183.67-103,660.86

Finding the Fourth Proportional to 188,538.42, 260,183.67 and 103,660.86

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Solution

The fourth proportional to 188,538.42, 260,183.67 and 103,660.86 is: 143,052.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,538.42 : 260,183.67 = 103,660.86 : x
  2. Step 2: Convert to fraction form
    188,538.42/260,183.67 = 103,660.86/x
  3. Step 3: Cross multiply
    188,538.42x = 260,183.67 × 103,660.86
  4. Step 4: Simplify right side
    188,538.42x = 26,970,862,990.16
  5. Step 5: Solve for x
    x = 26,970,862,990.16/188,538.42
  6. Step 6: Final answer
    x = 143,052.34

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1.5x scale

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.