Home / 102,074.11-140,855.79-56,751.27

Finding the Fourth Proportional to 102,074.11, 140,855.79 and 56,751.27

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Solution

The fourth proportional to 102,074.11, 140,855.79 and 56,751.27 is: 78,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,074.11 : 140,855.79 = 56,751.27 : x
  2. Step 2: Convert to fraction form
    102,074.11/140,855.79 = 56,751.27/x
  3. Step 3: Cross multiply
    102,074.11x = 140,855.79 × 56,751.27
  4. Step 4: Simplify right side
    102,074.11x = 7,993,744,653.96
  5. Step 5: Solve for x
    x = 7,993,744,653.96/102,074.11
  6. Step 6: Final answer
    x = 78,313.15

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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.