Home / 142,664.19-196,863.21-85,292.10

Finding the Fourth Proportional to 142,664.19, 196,863.21 and 85,292.10

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Solution

The fourth proportional to 142,664.19, 196,863.21 and 85,292.10 is: 117,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,664.19 : 196,863.21 = 85,292.10 : x
  2. Step 2: Convert to fraction form
    142,664.19/196,863.21 = 85,292.10/x
  3. Step 3: Cross multiply
    142,664.19x = 196,863.21 × 85,292.10
  4. Step 4: Simplify right side
    142,664.19x = 16,790,876,593.64
  5. Step 5: Solve for x
    x = 16,790,876,593.64/142,664.19
  6. Step 6: Final answer
    x = 117,695.10

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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.