Home / 142,944.96-197,272.08-79,285.44

Finding the Fourth Proportional to 142,944.96, 197,272.08 and 79,285.44

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Solution

The fourth proportional to 142,944.96, 197,272.08 and 79,285.44 is: 109,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,944.96 : 197,272.08 = 79,285.44 : x
  2. Step 2: Convert to fraction form
    142,944.96/197,272.08 = 79,285.44/x
  3. Step 3: Cross multiply
    142,944.96x = 197,272.08 × 79,285.44
  4. Step 4: Simplify right side
    142,944.96x = 15,640,803,662.52
  5. Step 5: Solve for x
    x = 15,640,803,662.52/142,944.96
  6. Step 6: Final answer
    x = 109,418.36

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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.