Home / 118,382.72-163,373.12-68,081.76

Finding the Fourth Proportional to 118,382.72, 163,373.12 and 68,081.76

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Solution

The fourth proportional to 118,382.72, 163,373.12 and 68,081.76 is: 93,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,382.72 : 163,373.12 = 68,081.76 : x
  2. Step 2: Convert to fraction form
    118,382.72/163,373.12 = 68,081.76/x
  3. Step 3: Cross multiply
    118,382.72x = 163,373.12 × 68,081.76
  4. Step 4: Simplify right side
    118,382.72x = 11,122,729,546.29
  5. Step 5: Solve for x
    x = 11,122,729,546.29/118,382.72
  6. Step 6: Final answer
    x = 93,955.68

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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.