Home / 186,821.12-257,811.74-106,248.54

Finding the Fourth Proportional to 186,821.12, 257,811.74 and 106,248.54

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Solution

The fourth proportional to 186,821.12, 257,811.74 and 106,248.54 is: 146,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821.12 : 257,811.74 = 106,248.54 : x
  2. Step 2: Convert to fraction form
    186,821.12/257,811.74 = 106,248.54/x
  3. Step 3: Cross multiply
    186,821.12x = 257,811.74 × 106,248.54
  4. Step 4: Simplify right side
    186,821.12x = 27,392,120,969.86
  5. Step 5: Solve for x
    x = 27,392,120,969.86/186,821.12
  6. Step 6: Final answer
    x = 146,622.19

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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.