Home / 119,379.20-179,440.68-75,289.28

Finding the Fourth Proportional to 119,379.20, 179,440.68 and 75,289.28

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Solution

The fourth proportional to 119,379.20, 179,440.68 and 75,289.28 is: 113,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,379.20 : 179,440.68 = 75,289.28 : x
  2. Step 2: Convert to fraction form
    119,379.20/179,440.68 = 75,289.28/x
  3. Step 3: Cross multiply
    119,379.20x = 179,440.68 × 75,289.28
  4. Step 4: Simplify right side
    119,379.20x = 13,509,959,599.91
  5. Step 5: Solve for x
    x = 13,509,959,599.91/119,379.20
  6. Step 6: Final answer
    x = 113,168.45

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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.