Home / 101,252.22-139,721.94-60,979.02

Finding the Fourth Proportional to 101,252.22, 139,721.94 and 60,979.02

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Solution

The fourth proportional to 101,252.22, 139,721.94 and 60,979.02 is: 84,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,252.22 : 139,721.94 = 60,979.02 : x
  2. Step 2: Convert to fraction form
    101,252.22/139,721.94 = 60,979.02/x
  3. Step 3: Cross multiply
    101,252.22x = 139,721.94 × 60,979.02
  4. Step 4: Simplify right side
    101,252.22x = 8,520,106,973.70
  5. Step 5: Solve for x
    x = 8,520,106,973.70/101,252.22
  6. Step 6: Final answer
    x = 84,147.36

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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.