Home / 114,930.22-158,513.73-78,653.08

Finding the Fourth Proportional to 114,930.22, 158,513.73 and 78,653.08

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Solution

The fourth proportional to 114,930.22, 158,513.73 and 78,653.08 is: 108,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,930.22 : 158,513.73 = 78,653.08 : x
  2. Step 2: Convert to fraction form
    114,930.22/158,513.73 = 78,653.08/x
  3. Step 3: Cross multiply
    114,930.22x = 158,513.73 × 78,653.08
  4. Step 4: Simplify right side
    114,930.22x = 12,467,593,086.79
  5. Step 5: Solve for x
    x = 12,467,593,086.79/114,930.22
  6. Step 6: Final answer
    x = 108,479.68

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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.