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Finding the Fourth Proportional to 160,728.33, 221,810.49 and 89,104.08

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Solution

The fourth proportional to 160,728.33, 221,810.49 and 89,104.08 is: 122,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,728.33 : 221,810.49 = 89,104.08 : x
  2. Step 2: Convert to fraction form
    160,728.33/221,810.49 = 89,104.08/x
  3. Step 3: Cross multiply
    160,728.33x = 221,810.49 × 89,104.08
  4. Step 4: Simplify right side
    160,728.33x = 19,764,219,645.80
  5. Step 5: Solve for x
    x = 19,764,219,645.80/160,728.33
  6. Step 6: Final answer
    x = 122,966.62

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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.