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Finding the Fourth Proportional to 160,621.99, 221,659.88 and 89,003.54

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Solution

The fourth proportional to 160,621.99, 221,659.88 and 89,003.54 is: 122,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,621.99 : 221,659.88 = 89,003.54 : x
  2. Step 2: Convert to fraction form
    160,621.99/221,659.88 = 89,003.54/x
  3. Step 3: Cross multiply
    160,621.99x = 221,659.88 × 89,003.54
  4. Step 4: Simplify right side
    160,621.99x = 19,728,514,105.11
  5. Step 5: Solve for x
    x = 19,728,514,105.11/160,621.99
  6. Step 6: Final answer
    x = 122,825.74

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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.