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Finding the Fourth Proportional to 160,862.36, 221,990.22 and 89,242.97

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Solution

The fourth proportional to 160,862.36, 221,990.22 and 89,242.97 is: 123,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,862.36 : 221,990.22 = 89,242.97 : x
  2. Step 2: Convert to fraction form
    160,862.36/221,990.22 = 89,242.97/x
  3. Step 3: Cross multiply
    160,862.36x = 221,990.22 × 89,242.97
  4. Step 4: Simplify right side
    160,862.36x = 19,811,065,433.80
  5. Step 5: Solve for x
    x = 19,811,065,433.80/160,862.36
  6. Step 6: Final answer
    x = 123,155.39

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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.