Home / 142,913.51-197,240.69-82,471.31

Finding the Fourth Proportional to 142,913.51, 197,240.69 and 82,471.31

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Solution

The fourth proportional to 142,913.51, 197,240.69 and 82,471.31 is: 113,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,913.51 : 197,240.69 = 82,471.31 : x
  2. Step 2: Convert to fraction form
    142,913.51/197,240.69 = 82,471.31/x
  3. Step 3: Cross multiply
    142,913.51x = 197,240.69 × 82,471.31
  4. Step 4: Simplify right side
    142,913.51x = 16,266,697,309.58
  5. Step 5: Solve for x
    x = 16,266,697,309.58/142,913.51
  6. Step 6: Final answer
    x = 113,821.97

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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.