Home / 185,071.62-255,399.39-100,188.48

Finding the Fourth Proportional to 185,071.62, 255,399.39 and 100,188.48

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Solution

The fourth proportional to 185,071.62, 255,399.39 and 100,188.48 is: 138,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,071.62 : 255,399.39 = 100,188.48 : x
  2. Step 2: Convert to fraction form
    185,071.62/255,399.39 = 100,188.48/x
  3. Step 3: Cross multiply
    185,071.62x = 255,399.39 × 100,188.48
  4. Step 4: Simplify right side
    185,071.62x = 25,588,076,677.03
  5. Step 5: Solve for x
    x = 25,588,076,677.03/185,071.62
  6. Step 6: Final answer
    x = 138,260.40

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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.