Home / 84,162.18-116,212.05-80,356.80

Finding the Fourth Proportional to 84,162.18, 116,212.05 and 80,356.80

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Solution

The fourth proportional to 84,162.18, 116,212.05 and 80,356.80 is: 110,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,162.18 : 116,212.05 = 80,356.80 : x
  2. Step 2: Convert to fraction form
    84,162.18/116,212.05 = 80,356.80/x
  3. Step 3: Cross multiply
    84,162.18x = 116,212.05 × 80,356.80
  4. Step 4: Simplify right side
    84,162.18x = 9,338,428,459.44
  5. Step 5: Solve for x
    x = 9,338,428,459.44/84,162.18
  6. Step 6: Final answer
    x = 110,957.54

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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.