Home / 159,152.82-219,622.74-87,519.05

Finding the Fourth Proportional to 159,152.82, 219,622.74 and 87,519.05

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Solution

The fourth proportional to 159,152.82, 219,622.74 and 87,519.05 is: 120,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,152.82 : 219,622.74 = 87,519.05 : x
  2. Step 2: Convert to fraction form
    159,152.82/219,622.74 = 87,519.05/x
  3. Step 3: Cross multiply
    159,152.82x = 219,622.74 × 87,519.05
  4. Step 4: Simplify right side
    159,152.82x = 19,221,173,452.77
  5. Step 5: Solve for x
    x = 19,221,173,452.77/159,152.82
  6. Step 6: Final answer
    x = 120,771.81

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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.