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Finding the Fourth Proportional to 101,249.74, 139,724.09 and 55,930.84

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Solution

The fourth proportional to 101,249.74, 139,724.09 and 55,930.84 is: 77,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,249.74 : 139,724.09 = 55,930.84 : x
  2. Step 2: Convert to fraction form
    101,249.74/139,724.09 = 55,930.84/x
  3. Step 3: Cross multiply
    101,249.74x = 139,724.09 × 55,930.84
  4. Step 4: Simplify right side
    101,249.74x = 7,814,885,442.28
  5. Step 5: Solve for x
    x = 7,814,885,442.28/101,249.74
  6. Step 6: Final answer
    x = 77,184.25

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1.5x scale

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.