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Finding the Fourth Proportional to 102,083.80, 140,883.52 and 61,249.46

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Solution

The fourth proportional to 102,083.80, 140,883.52 and 61,249.46 is: 84,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,083.80 : 140,883.52 = 61,249.46 : x
  2. Step 2: Convert to fraction form
    102,083.80/140,883.52 = 61,249.46/x
  3. Step 3: Cross multiply
    102,083.80x = 140,883.52 × 61,249.46
  4. Step 4: Simplify right side
    102,083.80x = 8,629,039,522.90
  5. Step 5: Solve for x
    x = 8,629,039,522.90/102,083.80
  6. Step 6: Final answer
    x = 84,528.98

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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.