Home / 159,438.44-220,022.39-87,825.13

Finding the Fourth Proportional to 159,438.44, 220,022.39 and 87,825.13

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Solution

The fourth proportional to 159,438.44, 220,022.39 and 87,825.13 is: 121,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,438.44 : 220,022.39 = 87,825.13 : x
  2. Step 2: Convert to fraction form
    159,438.44/220,022.39 = 87,825.13/x
  3. Step 3: Cross multiply
    159,438.44x = 220,022.39 × 87,825.13
  4. Step 4: Simplify right side
    159,438.44x = 19,323,494,674.17
  5. Step 5: Solve for x
    x = 19,323,494,674.17/159,438.44
  6. Step 6: Final answer
    x = 121,197.21

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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.