Home / 113,891.28-170,739.70-80,506.32

Finding the Fourth Proportional to 113,891.28, 170,739.70 and 80,506.32

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Solution

The fourth proportional to 113,891.28, 170,739.70 and 80,506.32 is: 120,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,891.28 : 170,739.70 = 80,506.32 : x
  2. Step 2: Convert to fraction form
    113,891.28/170,739.70 = 80,506.32/x
  3. Step 3: Cross multiply
    113,891.28x = 170,739.70 × 80,506.32
  4. Step 4: Simplify right side
    113,891.28x = 13,745,624,924.90
  5. Step 5: Solve for x
    x = 13,745,624,924.90/113,891.28
  6. Step 6: Final answer
    x = 120,690.76

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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.