Home / 101,287.02-139,768.82-55,964.49

Finding the Fourth Proportional to 101,287.02, 139,768.82 and 55,964.49

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Solution

The fourth proportional to 101,287.02, 139,768.82 and 55,964.49 is: 77,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,287.02 : 139,768.82 = 55,964.49 : x
  2. Step 2: Convert to fraction form
    101,287.02/139,768.82 = 55,964.49/x
  3. Step 3: Cross multiply
    101,287.02x = 139,768.82 × 55,964.49
  4. Step 4: Simplify right side
    101,287.02x = 7,822,090,135.11
  5. Step 5: Solve for x
    x = 7,822,090,135.11/101,287.02
  6. Step 6: Final answer
    x = 77,226.97

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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.