Home / 142,961.90-197,296.36-82,543.59

Finding the Fourth Proportional to 142,961.90, 197,296.36 and 82,543.59

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Solution

The fourth proportional to 142,961.90, 197,296.36 and 82,543.59 is: 113,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,961.90 : 197,296.36 = 82,543.59 : x
  2. Step 2: Convert to fraction form
    142,961.90/197,296.36 = 82,543.59/x
  3. Step 3: Cross multiply
    142,961.90x = 197,296.36 × 82,543.59
  4. Step 4: Simplify right side
    142,961.90x = 16,285,549,641.97
  5. Step 5: Solve for x
    x = 16,285,549,641.97/142,961.90
  6. Step 6: Final answer
    x = 113,915.32

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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.