Home / 189,521.73-284,281.20-77,175.54

Finding the Fourth Proportional to 189,521.73, 284,281.20 and 77,175.54

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Solution

The fourth proportional to 189,521.73, 284,281.20 and 77,175.54 is: 115,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,521.73 : 284,281.20 = 77,175.54 : x
  2. Step 2: Convert to fraction form
    189,521.73/284,281.20 = 77,175.54/x
  3. Step 3: Cross multiply
    189,521.73x = 284,281.20 × 77,175.54
  4. Step 4: Simplify right side
    189,521.73x = 21,939,555,121.85
  5. Step 5: Solve for x
    x = 21,939,555,121.85/189,521.73
  6. Step 6: Final answer
    x = 115,762.74

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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.