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Finding the Fourth Proportional to 161,073.10, 222,392.08 and 100,670.90

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Solution

The fourth proportional to 161,073.10, 222,392.08 and 100,670.90 is: 138,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,073.10 : 222,392.08 = 100,670.90 : x
  2. Step 2: Convert to fraction form
    161,073.10/222,392.08 = 100,670.90/x
  3. Step 3: Cross multiply
    161,073.10x = 222,392.08 × 100,670.90
  4. Step 4: Simplify right side
    161,073.10x = 22,388,409,860.35
  5. Step 5: Solve for x
    x = 22,388,409,860.35/161,073.10
  6. Step 6: Final answer
    x = 138,995.34

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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.