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Finding the Fourth Proportional to 159,073.66, 219,520.56 and 87,451.84

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Solution

The fourth proportional to 159,073.66, 219,520.56 and 87,451.84 is: 120,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,073.66 : 219,520.56 = 87,451.84 : x
  2. Step 2: Convert to fraction form
    159,073.66/219,520.56 = 87,451.84/x
  3. Step 3: Cross multiply
    159,073.66x = 219,520.56 × 87,451.84
  4. Step 4: Simplify right side
    159,073.66x = 19,197,476,889.83
  5. Step 5: Solve for x
    x = 19,197,476,889.83/159,073.66
  6. Step 6: Final answer
    x = 120,682.94

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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.