Home / 140,075.49-193,313.32-79,651.76

Finding the Fourth Proportional to 140,075.49, 193,313.32 and 79,651.76

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Solution

The fourth proportional to 140,075.49, 193,313.32 and 79,651.76 is: 109,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,075.49 : 193,313.32 = 79,651.76 : x
  2. Step 2: Convert to fraction form
    140,075.49/193,313.32 = 79,651.76/x
  3. Step 3: Cross multiply
    140,075.49x = 193,313.32 × 79,651.76
  4. Step 4: Simplify right side
    140,075.49x = 15,397,746,169.44
  5. Step 5: Solve for x
    x = 15,397,746,169.44/140,075.49
  6. Step 6: Final answer
    x = 109,924.63

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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.