Home / 142,852.35-197,085.40-82,438.27

Finding the Fourth Proportional to 142,852.35, 197,085.40 and 82,438.27

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Solution

The fourth proportional to 142,852.35, 197,085.40 and 82,438.27 is: 113,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,852.35 : 197,085.40 = 82,438.27 : x
  2. Step 2: Convert to fraction form
    142,852.35/197,085.40 = 82,438.27/x
  3. Step 3: Cross multiply
    142,852.35x = 197,085.40 × 82,438.27
  4. Step 4: Simplify right side
    142,852.35x = 16,247,379,418.26
  5. Step 5: Solve for x
    x = 16,247,379,418.26/142,852.35
  6. Step 6: Final answer
    x = 113,735.47

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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.