Home / 161,102.88-222,402.78-100,707.12

Finding the Fourth Proportional to 161,102.88, 222,402.78 and 100,707.12

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Solution

The fourth proportional to 161,102.88, 222,402.78 and 100,707.12 is: 139,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,102.88 : 222,402.78 = 100,707.12 : x
  2. Step 2: Convert to fraction form
    161,102.88/222,402.78 = 100,707.12/x
  3. Step 3: Cross multiply
    161,102.88x = 222,402.78 × 100,707.12
  4. Step 4: Simplify right side
    161,102.88x = 22,397,543,453.79
  5. Step 5: Solve for x
    x = 22,397,543,453.79/161,102.88
  6. Step 6: Final answer
    x = 139,026.34

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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.