Home / 161,009.72-222,194.22-100,615.46

Finding the Fourth Proportional to 161,009.72, 222,194.22 and 100,615.46

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Solution

The fourth proportional to 161,009.72, 222,194.22 and 100,615.46 is: 138,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,009.72 : 222,194.22 = 100,615.46 : x
  2. Step 2: Convert to fraction form
    161,009.72/222,194.22 = 100,615.46/x
  3. Step 3: Cross multiply
    161,009.72x = 222,194.22 × 100,615.46
  4. Step 4: Simplify right side
    161,009.72x = 22,356,173,654.64
  5. Step 5: Solve for x
    x = 22,356,173,654.64/161,009.72
  6. Step 6: Final answer
    x = 138,849.84

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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.