Home / 159,311.40-238,995.90-80,226.60

Finding the Fourth Proportional to 159,311.40, 238,995.90 and 80,226.60

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Solution

The fourth proportional to 159,311.40, 238,995.90 and 80,226.60 is: 120,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,311.40 : 238,995.90 = 80,226.60 : x
  2. Step 2: Convert to fraction form
    159,311.40/238,995.90 = 80,226.60/x
  3. Step 3: Cross multiply
    159,311.40x = 238,995.90 × 80,226.60
  4. Step 4: Simplify right side
    159,311.40x = 19,173,828,470.94
  5. Step 5: Solve for x
    x = 19,173,828,470.94/159,311.40
  6. Step 6: Final answer
    x = 120,354.40

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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.