Home / 142,960.23-197,285.31-79,298.02

Finding the Fourth Proportional to 142,960.23, 197,285.31 and 79,298.02

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Solution

The fourth proportional to 142,960.23, 197,285.31 and 79,298.02 is: 109,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,960.23 : 197,285.31 = 79,298.02 : x
  2. Step 2: Convert to fraction form
    142,960.23/197,285.31 = 79,298.02/x
  3. Step 3: Cross multiply
    142,960.23x = 197,285.31 × 79,298.02
  4. Step 4: Simplify right side
    142,960.23x = 15,644,334,458.09
  5. Step 5: Solve for x
    x = 15,644,334,458.09/142,960.23
  6. Step 6: Final answer
    x = 109,431.37

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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.