Home / 158,812.68-219,164.24-87,195.72

Finding the Fourth Proportional to 158,812.68, 219,164.24 and 87,195.72

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Solution

The fourth proportional to 158,812.68, 219,164.24 and 87,195.72 is: 120,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,812.68 : 219,164.24 = 87,195.72 : x
  2. Step 2: Convert to fraction form
    158,812.68/219,164.24 = 87,195.72/x
  3. Step 3: Cross multiply
    158,812.68x = 219,164.24 × 87,195.72
  4. Step 4: Simplify right side
    158,812.68x = 19,110,183,705.05
  5. Step 5: Solve for x
    x = 19,110,183,705.05/158,812.68
  6. Step 6: Final answer
    x = 120,331.60

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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.