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Finding the Fourth Proportional to 159,169.82, 219,650.03 and 90,271.92

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Solution

The fourth proportional to 159,169.82, 219,650.03 and 90,271.92 is: 124,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,169.82 : 219,650.03 = 90,271.92 : x
  2. Step 2: Convert to fraction form
    159,169.82/219,650.03 = 90,271.92/x
  3. Step 3: Cross multiply
    159,169.82x = 219,650.03 × 90,271.92
  4. Step 4: Simplify right side
    159,169.82x = 19,828,229,484.80
  5. Step 5: Solve for x
    x = 19,828,229,484.80/159,169.82
  6. Step 6: Final answer
    x = 124,572.80

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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.