Home / 185,785.52-256,390.07-105,211.31

Finding the Fourth Proportional to 185,785.52, 256,390.07 and 105,211.31

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Solution

The fourth proportional to 185,785.52, 256,390.07 and 105,211.31 is: 145,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,785.52 : 256,390.07 = 105,211.31 : x
  2. Step 2: Convert to fraction form
    185,785.52/256,390.07 = 105,211.31/x
  3. Step 3: Cross multiply
    185,785.52x = 256,390.07 × 105,211.31
  4. Step 4: Simplify right side
    185,785.52x = 26,975,133,327.68
  5. Step 5: Solve for x
    x = 26,975,133,327.68/185,785.52
  6. Step 6: Final answer
    x = 145,195.03

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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.