Home / 106,520.32-159,659.07-66,557.75

Finding the Fourth Proportional to 106,520.32, 159,659.07 and 66,557.75

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Solution

The fourth proportional to 106,520.32, 159,659.07 and 66,557.75 is: 99,760.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,520.32 : 159,659.07 = 66,557.75 : x
  2. Step 2: Convert to fraction form
    106,520.32/159,659.07 = 66,557.75/x
  3. Step 3: Cross multiply
    106,520.32x = 159,659.07 × 66,557.75
  4. Step 4: Simplify right side
    106,520.32x = 10,626,548,466.29
  5. Step 5: Solve for x
    x = 10,626,548,466.29/106,520.32
  6. Step 6: Final answer
    x = 99,760.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.