Home / 186,974.51-258,021.57-106,400.36

Finding the Fourth Proportional to 186,974.51, 258,021.57 and 106,400.36

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Solution

The fourth proportional to 186,974.51, 258,021.57 and 106,400.36 is: 146,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,974.51 : 258,021.57 = 106,400.36 : x
  2. Step 2: Convert to fraction form
    186,974.51/258,021.57 = 106,400.36/x
  3. Step 3: Cross multiply
    186,974.51x = 258,021.57 × 106,400.36
  4. Step 4: Simplify right side
    186,974.51x = 27,453,587,935.77
  5. Step 5: Solve for x
    x = 27,453,587,935.77/186,974.51
  6. Step 6: Final answer
    x = 146,830.65

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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.