Home / 142,989.36-197,342.81-82,559.90

Finding the Fourth Proportional to 142,989.36, 197,342.81 and 82,559.90

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Solution

The fourth proportional to 142,989.36, 197,342.81 and 82,559.90 is: 113,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,989.36 : 197,342.81 = 82,559.90 : x
  2. Step 2: Convert to fraction form
    142,989.36/197,342.81 = 82,559.90/x
  3. Step 3: Cross multiply
    142,989.36x = 197,342.81 × 82,559.90
  4. Step 4: Simplify right side
    142,989.36x = 16,292,602,165.96
  5. Step 5: Solve for x
    x = 16,292,602,165.96/142,989.36
  6. Step 6: Final answer
    x = 113,942.76

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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.