Home / 84,204.36-116,216.44-80,420.85

Finding the Fourth Proportional to 84,204.36, 116,216.44 and 80,420.85

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Solution

The fourth proportional to 84,204.36, 116,216.44 and 80,420.85 is: 110,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,204.36 : 116,216.44 = 80,420.85 : x
  2. Step 2: Convert to fraction form
    84,204.36/116,216.44 = 80,420.85/x
  3. Step 3: Cross multiply
    84,204.36x = 116,216.44 × 80,420.85
  4. Step 4: Simplify right side
    84,204.36x = 9,346,224,687.72
  5. Step 5: Solve for x
    x = 9,346,224,687.72/84,204.36
  6. Step 6: Final answer
    x = 110,994.55

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1.5x scale

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.