Home / 100,825.44-151,041.36-74,122.16

Finding the Fourth Proportional to 100,825.44, 151,041.36 and 74,122.16

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Solution

The fourth proportional to 100,825.44, 151,041.36 and 74,122.16 is: 111,038.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,825.44 : 151,041.36 = 74,122.16 : x
  2. Step 2: Convert to fraction form
    100,825.44/151,041.36 = 74,122.16/x
  3. Step 3: Cross multiply
    100,825.44x = 151,041.36 × 74,122.16
  4. Step 4: Simplify right side
    100,825.44x = 11,195,511,852.54
  5. Step 5: Solve for x
    x = 11,195,511,852.54/100,825.44
  6. Step 6: Final answer
    x = 111,038.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.