Home / 163,861.03-226,145.28-100,241.20

Finding the Fourth Proportional to 163,861.03, 226,145.28 and 100,241.20

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Solution

The fourth proportional to 163,861.03, 226,145.28 and 100,241.20 is: 138,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,861.03 : 226,145.28 = 100,241.20 : x
  2. Step 2: Convert to fraction form
    163,861.03/226,145.28 = 100,241.20/x
  3. Step 3: Cross multiply
    163,861.03x = 226,145.28 × 100,241.20
  4. Step 4: Simplify right side
    163,861.03x = 22,669,074,241.54
  5. Step 5: Solve for x
    x = 22,669,074,241.54/163,861.03
  6. Step 6: Final answer
    x = 138,343.29

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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.