Home / 142,589.24-196,777.78-82,155.08

Finding the Fourth Proportional to 142,589.24, 196,777.78 and 82,155.08

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Solution

The fourth proportional to 142,589.24, 196,777.78 and 82,155.08 is: 113,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,589.24 : 196,777.78 = 82,155.08 : x
  2. Step 2: Convert to fraction form
    142,589.24/196,777.78 = 82,155.08/x
  3. Step 3: Cross multiply
    142,589.24x = 196,777.78 × 82,155.08
  4. Step 4: Simplify right side
    142,589.24x = 16,166,294,258.12
  5. Step 5: Solve for x
    x = 16,166,294,258.12/142,589.24
  6. Step 6: Final answer
    x = 113,376.68

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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.