Home / 142,893.51-197,147.68-82,456.17

Finding the Fourth Proportional to 142,893.51, 197,147.68 and 82,456.17

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Solution

The fourth proportional to 142,893.51, 197,147.68 and 82,456.17 is: 113,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,893.51 : 197,147.68 = 82,456.17 : x
  2. Step 2: Convert to fraction form
    142,893.51/197,147.68 = 82,456.17/x
  3. Step 3: Cross multiply
    142,893.51x = 197,147.68 × 82,456.17
  4. Step 4: Simplify right side
    142,893.51x = 16,256,042,617.19
  5. Step 5: Solve for x
    x = 16,256,042,617.19/142,893.51
  6. Step 6: Final answer
    x = 113,763.34

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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.