Home / 158,904.62-219,289.68-87,286.24

Finding the Fourth Proportional to 158,904.62, 219,289.68 and 87,286.24

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Solution

The fourth proportional to 158,904.62, 219,289.68 and 87,286.24 is: 120,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,904.62 : 219,289.68 = 87,286.24 : x
  2. Step 2: Convert to fraction form
    158,904.62/219,289.68 = 87,286.24/x
  3. Step 3: Cross multiply
    158,904.62x = 219,289.68 × 87,286.24
  4. Step 4: Simplify right side
    158,904.62x = 19,140,971,912.12
  5. Step 5: Solve for x
    x = 19,140,971,912.12/158,904.62
  6. Step 6: Final answer
    x = 120,455.73

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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.