Home / 186,911.35-278,936.66-166,965.91

Finding the Fourth Proportional to 186,911.35, 278,936.66 and 166,965.91

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Solution

The fourth proportional to 186,911.35, 278,936.66 and 166,965.91 is: 249,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,911.35 : 278,936.66 = 166,965.91 : x
  2. Step 2: Convert to fraction form
    186,911.35/278,936.66 = 166,965.91/x
  3. Step 3: Cross multiply
    186,911.35x = 278,936.66 × 166,965.91
  4. Step 4: Simplify right side
    186,911.35x = 46,572,912,989.33
  5. Step 5: Solve for x
    x = 46,572,912,989.33/186,911.35
  6. Step 6: Final answer
    x = 249,171.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.