Home / 186,215.62-256,958.01-105,617.38

Finding the Fourth Proportional to 186,215.62, 256,958.01 and 105,617.38

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Solution

The fourth proportional to 186,215.62, 256,958.01 and 105,617.38 is: 145,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,215.62 : 256,958.01 = 105,617.38 : x
  2. Step 2: Convert to fraction form
    186,215.62/256,958.01 = 105,617.38/x
  3. Step 3: Cross multiply
    186,215.62x = 256,958.01 × 105,617.38
  4. Step 4: Simplify right side
    186,215.62x = 27,139,231,786.21
  5. Step 5: Solve for x
    x = 27,139,231,786.21/186,215.62
  6. Step 6: Final answer
    x = 145,740.90

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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.