Home / 185,212.76-255,595.37-100,331.64

Finding the Fourth Proportional to 185,212.76, 255,595.37 and 100,331.64

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Solution

The fourth proportional to 185,212.76, 255,595.37 and 100,331.64 is: 138,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,212.76 : 255,595.37 = 100,331.64 : x
  2. Step 2: Convert to fraction form
    185,212.76/255,595.37 = 100,331.64/x
  3. Step 3: Cross multiply
    185,212.76x = 255,595.37 × 100,331.64
  4. Step 4: Simplify right side
    185,212.76x = 25,644,302,146.85
  5. Step 5: Solve for x
    x = 25,644,302,146.85/185,212.76
  6. Step 6: Final answer
    x = 138,458.62

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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.