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Finding the Fourth Proportional to 131,062.88, 180,866.84 and 74,474.25

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Solution

The fourth proportional to 131,062.88, 180,866.84 and 74,474.25 is: 102,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,062.88 : 180,866.84 = 74,474.25 : x
  2. Step 2: Convert to fraction form
    131,062.88/180,866.84 = 74,474.25/x
  3. Step 3: Cross multiply
    131,062.88x = 180,866.84 × 74,474.25
  4. Step 4: Simplify right side
    131,062.88x = 13,469,922,258.87
  5. Step 5: Solve for x
    x = 13,469,922,258.87/131,062.88
  6. Step 6: Final answer
    x = 102,774.50

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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.