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Finding the Fourth Proportional to 159,800.64, 220,523.70 and 90,889.98

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Solution

The fourth proportional to 159,800.64, 220,523.70 and 90,889.98 is: 125,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,800.64 : 220,523.70 = 90,889.98 : x
  2. Step 2: Convert to fraction form
    159,800.64/220,523.70 = 90,889.98/x
  3. Step 3: Cross multiply
    159,800.64x = 220,523.70 × 90,889.98
  4. Step 4: Simplify right side
    159,800.64x = 20,043,394,682.53
  5. Step 5: Solve for x
    x = 20,043,394,682.53/159,800.64
  6. Step 6: Final answer
    x = 125,427.50

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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.