Home / 185,323.23-255,739.19-100,438.47

Finding the Fourth Proportional to 185,323.23, 255,739.19 and 100,438.47

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Solution

The fourth proportional to 185,323.23, 255,739.19 and 100,438.47 is: 138,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,323.23 : 255,739.19 = 100,438.47 : x
  2. Step 2: Convert to fraction form
    185,323.23/255,739.19 = 100,438.47/x
  3. Step 3: Cross multiply
    185,323.23x = 255,739.19 × 100,438.47
  4. Step 4: Simplify right side
    185,323.23x = 25,686,052,460.45
  5. Step 5: Solve for x
    x = 25,686,052,460.45/185,323.23
  6. Step 6: Final answer
    x = 138,601.36

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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.