Home / 142,892.51-197,146.31-82,455.17

Finding the Fourth Proportional to 142,892.51, 197,146.31 and 82,455.17

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Solution

The fourth proportional to 142,892.51, 197,146.31 and 82,455.17 is: 113,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,892.51 : 197,146.31 = 82,455.17 : x
  2. Step 2: Convert to fraction form
    142,892.51/197,146.31 = 82,455.17/x
  3. Step 3: Cross multiply
    142,892.51x = 197,146.31 × 82,455.17
  4. Step 4: Simplify right side
    142,892.51x = 16,255,731,107.92
  5. Step 5: Solve for x
    x = 16,255,731,107.92/142,892.51
  6. Step 6: Final answer
    x = 113,761.96

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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.