Home / 147,813.77-203,982.97-79,830.74

Finding the Fourth Proportional to 147,813.77, 203,982.97 and 79,830.74

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Solution

The fourth proportional to 147,813.77, 203,982.97 and 79,830.74 is: 110,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,813.77 : 203,982.97 = 79,830.74 : x
  2. Step 2: Convert to fraction form
    147,813.77/203,982.97 = 79,830.74/x
  3. Step 3: Cross multiply
    147,813.77x = 203,982.97 × 79,830.74
  4. Step 4: Simplify right side
    147,813.77x = 16,284,111,441.12
  5. Step 5: Solve for x
    x = 16,284,111,441.12/147,813.77
  6. Step 6: Final answer
    x = 110,166.41

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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.