Home / 136,884.02-188,879.73-80,313.62

Finding the Fourth Proportional to 136,884.02, 188,879.73 and 80,313.62

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Solution

The fourth proportional to 136,884.02, 188,879.73 and 80,313.62 is: 110,820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.02 : 188,879.73 = 80,313.62 : x
  2. Step 2: Convert to fraction form
    136,884.02/188,879.73 = 80,313.62/x
  3. Step 3: Cross multiply
    136,884.02x = 188,879.73 × 80,313.62
  4. Step 4: Simplify right side
    136,884.02x = 15,169,614,860.92
  5. Step 5: Solve for x
    x = 15,169,614,860.92/136,884.02
  6. Step 6: Final answer
    x = 110,820.93

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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.