Home / 142,908.31-197,229.72-82,495.16

Finding the Fourth Proportional to 142,908.31, 197,229.72 and 82,495.16

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Solution

The fourth proportional to 142,908.31, 197,229.72 and 82,495.16 is: 113,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,908.31 : 197,229.72 = 82,495.16 : x
  2. Step 2: Convert to fraction form
    142,908.31/197,229.72 = 82,495.16/x
  3. Step 3: Cross multiply
    142,908.31x = 197,229.72 × 82,495.16
  4. Step 4: Simplify right side
    142,908.31x = 16,270,497,308.16
  5. Step 5: Solve for x
    x = 16,270,497,308.16/142,908.31
  6. Step 6: Final answer
    x = 113,852.70

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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.