Home / 132,971.70-183,497.30-72,542.33

Finding the Fourth Proportional to 132,971.70, 183,497.30 and 72,542.33

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Solution

The fourth proportional to 132,971.70, 183,497.30 and 72,542.33 is: 100,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,971.70 : 183,497.30 = 72,542.33 : x
  2. Step 2: Convert to fraction form
    132,971.70/183,497.30 = 72,542.33/x
  3. Step 3: Cross multiply
    132,971.70x = 183,497.30 × 72,542.33
  4. Step 4: Simplify right side
    132,971.70x = 13,311,320,773.22
  5. Step 5: Solve for x
    x = 13,311,320,773.22/132,971.70
  6. Step 6: Final answer
    x = 100,106.42

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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.