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Finding the Fourth Proportional to 160,680.78, 221,737.26 and 89,059.26

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Solution

The fourth proportional to 160,680.78, 221,737.26 and 89,059.26 is: 122,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,680.78 : 221,737.26 = 89,059.26 : x
  2. Step 2: Convert to fraction form
    160,680.78/221,737.26 = 89,059.26/x
  3. Step 3: Cross multiply
    160,680.78x = 221,737.26 × 89,059.26
  4. Step 4: Simplify right side
    160,680.78x = 19,747,756,290.03
  5. Step 5: Solve for x
    x = 19,747,756,290.03/160,680.78
  6. Step 6: Final answer
    x = 122,900.55

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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.