Home / 185,703.54-256,286.75-105,145.26

Finding the Fourth Proportional to 185,703.54, 256,286.75 and 105,145.26

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Solution

The fourth proportional to 185,703.54, 256,286.75 and 105,145.26 is: 145,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,703.54 : 256,286.75 = 105,145.26 : x
  2. Step 2: Convert to fraction form
    185,703.54/256,286.75 = 105,145.26/x
  3. Step 3: Cross multiply
    185,703.54x = 256,286.75 × 105,145.26
  4. Step 4: Simplify right side
    185,703.54x = 26,947,336,437.58
  5. Step 5: Solve for x
    x = 26,947,336,437.58/185,703.54
  6. Step 6: Final answer
    x = 145,109.44

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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.