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Finding the Fourth Proportional to 160,798.55, 221,915.61 and 89,201.63

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Solution

The fourth proportional to 160,798.55, 221,915.61 and 89,201.63 is: 123,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,798.55 : 221,915.61 = 89,201.63 : x
  2. Step 2: Convert to fraction form
    160,798.55/221,915.61 = 89,201.63/x
  3. Step 3: Cross multiply
    160,798.55x = 221,915.61 × 89,201.63
  4. Step 4: Simplify right side
    160,798.55x = 19,795,234,134.44
  5. Step 5: Solve for x
    x = 19,795,234,134.44/160,798.55
  6. Step 6: Final answer
    x = 123,105.80

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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.