Home / 118,541.97-163,647.41-91,623.65

Finding the Fourth Proportional to 118,541.97, 163,647.41 and 91,623.65

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Solution

The fourth proportional to 118,541.97, 163,647.41 and 91,623.65 is: 126,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,541.97 : 163,647.41 = 91,623.65 : x
  2. Step 2: Convert to fraction form
    118,541.97/163,647.41 = 91,623.65/x
  3. Step 3: Cross multiply
    118,541.97x = 163,647.41 × 91,623.65
  4. Step 4: Simplify right side
    118,541.97x = 14,993,971,740.89
  5. Step 5: Solve for x
    x = 14,993,971,740.89/118,541.97
  6. Step 6: Final answer
    x = 126,486.61

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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.