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Finding the Fourth Proportional to 189,079.86, 283,668.99 and 70,760.34

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Solution

The fourth proportional to 189,079.86, 283,668.99 and 70,760.34 is: 106,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,079.86 : 283,668.99 = 70,760.34 : x
  2. Step 2: Convert to fraction form
    189,079.86/283,668.99 = 70,760.34/x
  3. Step 3: Cross multiply
    189,079.86x = 283,668.99 × 70,760.34
  4. Step 4: Simplify right side
    189,079.86x = 20,072,514,179.86
  5. Step 5: Solve for x
    x = 20,072,514,179.86/189,079.86
  6. Step 6: Final answer
    x = 106,158.92

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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.