Home / 190,383.71-262,731.09-105,502.19

Finding the Fourth Proportional to 190,383.71, 262,731.09 and 105,502.19

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Solution

The fourth proportional to 190,383.71, 262,731.09 and 105,502.19 is: 145,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,383.71 : 262,731.09 = 105,502.19 : x
  2. Step 2: Convert to fraction form
    190,383.71/262,731.09 = 105,502.19/x
  3. Step 3: Cross multiply
    190,383.71x = 262,731.09 × 105,502.19
  4. Step 4: Simplify right side
    190,383.71x = 27,718,705,376.09
  5. Step 5: Solve for x
    x = 27,718,705,376.09/190,383.71
  6. Step 6: Final answer
    x = 145,593.89

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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.