Home / 142,871.89-197,160.19-82,437.79

Finding the Fourth Proportional to 142,871.89, 197,160.19 and 82,437.79

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Solution

The fourth proportional to 142,871.89, 197,160.19 and 82,437.79 is: 113,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,871.89 : 197,160.19 = 82,437.79 : x
  2. Step 2: Convert to fraction form
    142,871.89/197,160.19 = 82,437.79/x
  3. Step 3: Cross multiply
    142,871.89x = 197,160.19 × 82,437.79
  4. Step 4: Simplify right side
    142,871.89x = 16,253,450,339.58
  5. Step 5: Solve for x
    x = 16,253,450,339.58/142,871.89
  6. Step 6: Final answer
    x = 113,762.41

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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.