Home / 118,895.30-164,048.56-80,660.06

Finding the Fourth Proportional to 118,895.30, 164,048.56 and 80,660.06

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Solution

The fourth proportional to 118,895.30, 164,048.56 and 80,660.06 is: 111,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,895.30 : 164,048.56 = 80,660.06 : x
  2. Step 2: Convert to fraction form
    118,895.30/164,048.56 = 80,660.06/x
  3. Step 3: Cross multiply
    118,895.30x = 164,048.56 × 80,660.06
  4. Step 4: Simplify right side
    118,895.30x = 13,232,166,692.51
  5. Step 5: Solve for x
    x = 13,232,166,692.51/118,895.30
  6. Step 6: Final answer
    x = 111,292.60

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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.