Home / 223,175.40-307,983.06-121,201.62

Finding the Fourth Proportional to 223,175.40, 307,983.06 and 121,201.62

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Solution

The fourth proportional to 223,175.40, 307,983.06 and 121,201.62 is: 167,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,175.40 : 307,983.06 = 121,201.62 : x
  2. Step 2: Convert to fraction form
    223,175.40/307,983.06 = 121,201.62/x
  3. Step 3: Cross multiply
    223,175.40x = 307,983.06 × 121,201.62
  4. Step 4: Simplify right side
    223,175.40x = 37,328,045,804.56
  5. Step 5: Solve for x
    x = 37,328,045,804.56/223,175.40
  6. Step 6: Final answer
    x = 167,258.78

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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.