Home / 142,183.22-196,207.43-77,650.29

Finding the Fourth Proportional to 142,183.22, 196,207.43 and 77,650.29

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Solution

The fourth proportional to 142,183.22, 196,207.43 and 77,650.29 is: 107,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,183.22 : 196,207.43 = 77,650.29 : x
  2. Step 2: Convert to fraction form
    142,183.22/196,207.43 = 77,650.29/x
  3. Step 3: Cross multiply
    142,183.22x = 196,207.43 × 77,650.29
  4. Step 4: Simplify right side
    142,183.22x = 15,235,563,451.40
  5. Step 5: Solve for x
    x = 15,235,563,451.40/142,183.22
  6. Step 6: Final answer
    x = 107,154.44

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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.