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Finding the Fourth Proportional to 101,974.87, 140,718.79 and 56,652.02

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Solution

The fourth proportional to 101,974.87, 140,718.79 and 56,652.02 is: 78,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,974.87 : 140,718.79 = 56,652.02 : x
  2. Step 2: Convert to fraction form
    101,974.87/140,718.79 = 56,652.02/x
  3. Step 3: Cross multiply
    101,974.87x = 140,718.79 × 56,652.02
  4. Step 4: Simplify right side
    101,974.87x = 7,972,003,705.46
  5. Step 5: Solve for x
    x = 7,972,003,705.46/101,974.87
  6. Step 6: Final answer
    x = 78,176.16

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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.