Home / 118,922.39-178,033.66-79,381.43

Finding the Fourth Proportional to 118,922.39, 178,033.66 and 79,381.43

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Solution

The fourth proportional to 118,922.39, 178,033.66 and 79,381.43 is: 118,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,922.39 : 178,033.66 = 79,381.43 : x
  2. Step 2: Convert to fraction form
    118,922.39/178,033.66 = 79,381.43/x
  3. Step 3: Cross multiply
    118,922.39x = 178,033.66 × 79,381.43
  4. Step 4: Simplify right side
    118,922.39x = 14,132,565,430.31
  5. Step 5: Solve for x
    x = 14,132,565,430.31/118,922.39
  6. Step 6: Final answer
    x = 118,838.56

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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.