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Finding the Fourth Proportional to 160,702.95, 221,771.87 and 91,801.54

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Solution

The fourth proportional to 160,702.95, 221,771.87 and 91,801.54 is: 126,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,702.95 : 221,771.87 = 91,801.54 : x
  2. Step 2: Convert to fraction form
    160,702.95/221,771.87 = 91,801.54/x
  3. Step 3: Cross multiply
    160,702.95x = 221,771.87 × 91,801.54
  4. Step 4: Simplify right side
    160,702.95x = 20,358,998,085.82
  5. Step 5: Solve for x
    x = 20,358,998,085.82/160,702.95
  6. Step 6: Final answer
    x = 126,687.15

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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.