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Finding the Fourth Proportional to 159,190.66, 219,684.15 and 87,568.84

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Solution

The fourth proportional to 159,190.66, 219,684.15 and 87,568.84 is: 120,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,190.66 : 219,684.15 = 87,568.84 : x
  2. Step 2: Convert to fraction form
    159,190.66/219,684.15 = 87,568.84/x
  3. Step 3: Cross multiply
    159,190.66x = 219,684.15 × 87,568.84
  4. Step 4: Simplify right side
    159,190.66x = 19,237,486,181.89
  5. Step 5: Solve for x
    x = 19,237,486,181.89/159,190.66
  6. Step 6: Final answer
    x = 120,845.57

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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.