Home / 190,810.40-263,633.28-143,221.28

Finding the Fourth Proportional to 190,810.40, 263,633.28 and 143,221.28

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Solution

The fourth proportional to 190,810.40, 263,633.28 and 143,221.28 is: 197,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,810.40 : 263,633.28 = 143,221.28 : x
  2. Step 2: Convert to fraction form
    190,810.40/263,633.28 = 143,221.28/x
  3. Step 3: Cross multiply
    190,810.40x = 263,633.28 × 143,221.28
  4. Step 4: Simplify right side
    190,810.40x = 37,757,895,812.20
  5. Step 5: Solve for x
    x = 37,757,895,812.20/190,810.40
  6. Step 6: Final answer
    x = 197,881.75

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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.