Home / 186,445.27-257,286.16-108,928.09

Finding the Fourth Proportional to 186,445.27, 257,286.16 and 108,928.09

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Solution

The fourth proportional to 186,445.27, 257,286.16 and 108,928.09 is: 150,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,445.27 : 257,286.16 = 108,928.09 : x
  2. Step 2: Convert to fraction form
    186,445.27/257,286.16 = 108,928.09/x
  3. Step 3: Cross multiply
    186,445.27x = 257,286.16 × 108,928.09
  4. Step 4: Simplify right side
    186,445.27x = 28,025,689,779.84
  5. Step 5: Solve for x
    x = 28,025,689,779.84/186,445.27
  6. Step 6: Final answer
    x = 150,315.91

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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.