Home / 186,564.81-279,670.89-74,314.35

Finding the Fourth Proportional to 186,564.81, 279,670.89 and 74,314.35

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Solution

The fourth proportional to 186,564.81, 279,670.89 and 74,314.35 is: 111,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,564.81 : 279,670.89 = 74,314.35 : x
  2. Step 2: Convert to fraction form
    186,564.81/279,670.89 = 74,314.35/x
  3. Step 3: Cross multiply
    186,564.81x = 279,670.89 × 74,314.35
  4. Step 4: Simplify right side
    186,564.81x = 20,783,560,404.27
  5. Step 5: Solve for x
    x = 20,783,560,404.27/186,564.81
  6. Step 6: Final answer
    x = 111,401.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.