Home / 190,329.42-262,651.12-112,857.21

Finding the Fourth Proportional to 190,329.42, 262,651.12 and 112,857.21

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Solution

The fourth proportional to 190,329.42, 262,651.12 and 112,857.21 is: 155,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,329.42 : 262,651.12 = 112,857.21 : x
  2. Step 2: Convert to fraction form
    190,329.42/262,651.12 = 112,857.21/x
  3. Step 3: Cross multiply
    190,329.42x = 262,651.12 × 112,857.21
  4. Step 4: Simplify right side
    190,329.42x = 29,642,072,139.94
  5. Step 5: Solve for x
    x = 29,642,072,139.94/190,329.42
  6. Step 6: Final answer
    x = 155,740.88

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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.