Home / 156,336.65-215,744.79-84,716.62

Finding the Fourth Proportional to 156,336.65, 215,744.79 and 84,716.62

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Solution

The fourth proportional to 156,336.65, 215,744.79 and 84,716.62 is: 116,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,336.65 : 215,744.79 = 84,716.62 : x
  2. Step 2: Convert to fraction form
    156,336.65/215,744.79 = 84,716.62/x
  3. Step 3: Cross multiply
    156,336.65x = 215,744.79 × 84,716.62
  4. Step 4: Simplify right side
    156,336.65x = 18,277,169,391.41
  5. Step 5: Solve for x
    x = 18,277,169,391.41/156,336.65
  6. Step 6: Final answer
    x = 116,909.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.