Home / 142,873.24-197,155.44-82,446.40

Finding the Fourth Proportional to 142,873.24, 197,155.44 and 82,446.40

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Solution

The fourth proportional to 142,873.24, 197,155.44 and 82,446.40 is: 113,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,873.24 : 197,155.44 = 82,446.40 : x
  2. Step 2: Convert to fraction form
    142,873.24/197,155.44 = 82,446.40/x
  3. Step 3: Cross multiply
    142,873.24x = 197,155.44 × 82,446.40
  4. Step 4: Simplify right side
    142,873.24x = 16,254,756,268.42
  5. Step 5: Solve for x
    x = 16,254,756,268.42/142,873.24
  6. Step 6: Final answer
    x = 113,770.47

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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.