Home / 168,949.98-253,424.77-77,756.22

Finding the Fourth Proportional to 168,949.98, 253,424.77 and 77,756.22

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Solution

The fourth proportional to 168,949.98, 253,424.77 and 77,756.22 is: 116,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,949.98 : 253,424.77 = 77,756.22 : x
  2. Step 2: Convert to fraction form
    168,949.98/253,424.77 = 77,756.22/x
  3. Step 3: Cross multiply
    168,949.98x = 253,424.77 × 77,756.22
  4. Step 4: Simplify right side
    168,949.98x = 19,705,351,975.18
  5. Step 5: Solve for x
    x = 19,705,351,975.18/168,949.98
  6. Step 6: Final answer
    x = 116,634.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.