Home / 118,442.36-177,786.54-68,619.76

Finding the Fourth Proportional to 118,442.36, 177,786.54 and 68,619.76

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Solution

The fourth proportional to 118,442.36, 177,786.54 and 68,619.76 is: 103,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,442.36 : 177,786.54 = 68,619.76 : x
  2. Step 2: Convert to fraction form
    118,442.36/177,786.54 = 68,619.76/x
  3. Step 3: Cross multiply
    118,442.36x = 177,786.54 × 68,619.76
  4. Step 4: Simplify right side
    118,442.36x = 12,199,669,706.03
  5. Step 5: Solve for x
    x = 12,199,669,706.03/118,442.36
  6. Step 6: Final answer
    x = 103,000.90

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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.