Home / 186,722.09-257,675.30-106,149.61

Finding the Fourth Proportional to 186,722.09, 257,675.30 and 106,149.61

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Solution

The fourth proportional to 186,722.09, 257,675.30 and 106,149.61 is: 146,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,722.09 : 257,675.30 = 106,149.61 : x
  2. Step 2: Convert to fraction form
    186,722.09/257,675.30 = 106,149.61/x
  3. Step 3: Cross multiply
    186,722.09x = 257,675.30 × 106,149.61
  4. Step 4: Simplify right side
    186,722.09x = 27,352,133,511.20
  5. Step 5: Solve for x
    x = 27,352,133,511.20/186,722.09
  6. Step 6: Final answer
    x = 146,485.79

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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.