Home / 142,183.96-196,214.40-77,653.84

Finding the Fourth Proportional to 142,183.96, 196,214.40 and 77,653.84

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Solution

The fourth proportional to 142,183.96, 196,214.40 and 77,653.84 is: 107,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,183.96 : 196,214.40 = 77,653.84 : x
  2. Step 2: Convert to fraction form
    142,183.96/196,214.40 = 77,653.84/x
  3. Step 3: Cross multiply
    142,183.96x = 196,214.40 × 77,653.84
  4. Step 4: Simplify right side
    142,183.96x = 15,236,801,623.30
  5. Step 5: Solve for x
    x = 15,236,801,623.30/142,183.96
  6. Step 6: Final answer
    x = 107,162.59

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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.