Home / 190,282.13-262,597.68-105,399.20

Finding the Fourth Proportional to 190,282.13, 262,597.68 and 105,399.20

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Solution

The fourth proportional to 190,282.13, 262,597.68 and 105,399.20 is: 145,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,282.13 : 262,597.68 = 105,399.20 : x
  2. Step 2: Convert to fraction form
    190,282.13/262,597.68 = 105,399.20/x
  3. Step 3: Cross multiply
    190,282.13x = 262,597.68 × 105,399.20
  4. Step 4: Simplify right side
    190,282.13x = 27,677,584,080.87
  5. Step 5: Solve for x
    x = 27,677,584,080.87/190,282.13
  6. Step 6: Final answer
    x = 145,455.51

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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.