Home / 163,921.41-226,221.98-99,396.81

Finding the Fourth Proportional to 163,921.41, 226,221.98 and 99,396.81

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Solution

The fourth proportional to 163,921.41, 226,221.98 and 99,396.81 is: 137,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,921.41 : 226,221.98 = 99,396.81 : x
  2. Step 2: Convert to fraction form
    163,921.41/226,221.98 = 99,396.81/x
  3. Step 3: Cross multiply
    163,921.41x = 226,221.98 × 99,396.81
  4. Step 4: Simplify right side
    163,921.41x = 22,485,743,163.88
  5. Step 5: Solve for x
    x = 22,485,743,163.88/163,921.41
  6. Step 6: Final answer
    x = 137,173.92

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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.