Home / 117,173.03-161,577.85-100,233.35

Finding the Fourth Proportional to 117,173.03, 161,577.85 and 100,233.35

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Solution

The fourth proportional to 117,173.03, 161,577.85 and 100,233.35 is: 138,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,173.03 : 161,577.85 = 100,233.35 : x
  2. Step 2: Convert to fraction form
    117,173.03/161,577.85 = 100,233.35/x
  3. Step 3: Cross multiply
    117,173.03x = 161,577.85 × 100,233.35
  4. Step 4: Simplify right side
    117,173.03x = 16,195,487,882.24
  5. Step 5: Solve for x
    x = 16,195,487,882.24/117,173.03
  6. Step 6: Final answer
    x = 138,218.57

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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.