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Finding the Fourth Proportional to 159,201.64, 219,700.08 and 91,217.25

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Solution

The fourth proportional to 159,201.64, 219,700.08 and 91,217.25 is: 125,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,201.64 : 219,700.08 = 91,217.25 : x
  2. Step 2: Convert to fraction form
    159,201.64/219,700.08 = 91,217.25/x
  3. Step 3: Cross multiply
    159,201.64x = 219,700.08 × 91,217.25
  4. Step 4: Simplify right side
    159,201.64x = 20,040,436,666.29
  5. Step 5: Solve for x
    x = 20,040,436,666.29/159,201.64
  6. Step 6: Final answer
    x = 125,880.84

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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.