Home / 100,851.20-151,260.60-30,714.20

Finding the Fourth Proportional to 100,851.20, 151,260.60 and 30,714.20

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Solution

The fourth proportional to 100,851.20, 151,260.60 and 30,714.20 is: 46,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.20 : 151,260.60 = 30,714.20 : x
  2. Step 2: Convert to fraction form
    100,851.20/151,260.60 = 30,714.20/x
  3. Step 3: Cross multiply
    100,851.20x = 151,260.60 × 30,714.20
  4. Step 4: Simplify right side
    100,851.20x = 4,645,848,320.52
  5. Step 5: Solve for x
    x = 4,645,848,320.52/100,851.20
  6. Step 6: Final answer
    x = 46,066.37

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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.