Home / 100,859.07-151,288.46-30,738.39

Finding the Fourth Proportional to 100,859.07, 151,288.46 and 30,738.39

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Solution

The fourth proportional to 100,859.07, 151,288.46 and 30,738.39 is: 46,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859.07 : 151,288.46 = 30,738.39 : x
  2. Step 2: Convert to fraction form
    100,859.07/151,288.46 = 30,738.39/x
  3. Step 3: Cross multiply
    100,859.07x = 151,288.46 × 30,738.39
  4. Step 4: Simplify right side
    100,859.07x = 4,650,363,080.22
  5. Step 5: Solve for x
    x = 4,650,363,080.22/100,859.07
  6. Step 6: Final answer
    x = 46,107.53

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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.