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Finding the Fourth Proportional to 159,314.22, 219,846.06 and 87,692.76

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Solution

The fourth proportional to 159,314.22, 219,846.06 and 87,692.76 is: 121,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,314.22 : 219,846.06 = 87,692.76 : x
  2. Step 2: Convert to fraction form
    159,314.22/219,846.06 = 87,692.76/x
  3. Step 3: Cross multiply
    159,314.22x = 219,846.06 × 87,692.76
  4. Step 4: Simplify right side
    159,314.22x = 19,278,907,776.53
  5. Step 5: Solve for x
    x = 19,278,907,776.53/159,314.22
  6. Step 6: Final answer
    x = 121,011.85

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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.