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Finding the Fourth Proportional to 101,630.07, 140,272.83 and 67,640.01

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Solution

The fourth proportional to 101,630.07, 140,272.83 and 67,640.01 is: 93,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,630.07 : 140,272.83 = 67,640.01 : x
  2. Step 2: Convert to fraction form
    101,630.07/140,272.83 = 67,640.01/x
  3. Step 3: Cross multiply
    101,630.07x = 140,272.83 × 67,640.01
  4. Step 4: Simplify right side
    101,630.07x = 9,488,055,623.93
  5. Step 5: Solve for x
    x = 9,488,055,623.93/101,630.07
  6. Step 6: Final answer
    x = 93,358.74

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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.