Home / 158,906.50-219,292.27-87,288.12

Finding the Fourth Proportional to 158,906.50, 219,292.27 and 87,288.12

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Solution

The fourth proportional to 158,906.50, 219,292.27 and 87,288.12 is: 120,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,906.50 : 219,292.27 = 87,288.12 : x
  2. Step 2: Convert to fraction form
    158,906.50/219,292.27 = 87,288.12/x
  3. Step 3: Cross multiply
    158,906.50x = 219,292.27 × 87,288.12
  4. Step 4: Simplify right side
    158,906.50x = 19,141,609,760.61
  5. Step 5: Solve for x
    x = 19,141,609,760.61/158,906.50
  6. Step 6: Final answer
    x = 120,458.32

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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.