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Finding the Fourth Proportional to 101,323.48, 139,843.41 and 68,603.05

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Solution

The fourth proportional to 101,323.48, 139,843.41 and 68,603.05 is: 94,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,323.48 : 139,843.41 = 68,603.05 : x
  2. Step 2: Convert to fraction form
    101,323.48/139,843.41 = 68,603.05/x
  3. Step 3: Cross multiply
    101,323.48x = 139,843.41 × 68,603.05
  4. Step 4: Simplify right side
    101,323.48x = 9,593,684,448.40
  5. Step 5: Solve for x
    x = 9,593,684,448.40/101,323.48
  6. Step 6: Final answer
    x = 94,683.72

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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.