Home / 186,821.57-257,819.47-106,260.71

Finding the Fourth Proportional to 186,821.57, 257,819.47 and 106,260.71

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Solution

The fourth proportional to 186,821.57, 257,819.47 and 106,260.71 is: 146,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821.57 : 257,819.47 = 106,260.71 : x
  2. Step 2: Convert to fraction form
    186,821.57/257,819.47 = 106,260.71/x
  3. Step 3: Cross multiply
    186,821.57x = 257,819.47 × 106,260.71
  4. Step 4: Simplify right side
    186,821.57x = 27,396,078,379.27
  5. Step 5: Solve for x
    x = 27,396,078,379.27/186,821.57
  6. Step 6: Final answer
    x = 146,643.01

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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.