Home / 168,621.06-252,478.37-128,448.69

Finding the Fourth Proportional to 168,621.06, 252,478.37 and 128,448.69

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Solution

The fourth proportional to 168,621.06, 252,478.37 and 128,448.69 is: 192,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,621.06 : 252,478.37 = 128,448.69 : x
  2. Step 2: Convert to fraction form
    168,621.06/252,478.37 = 128,448.69/x
  3. Step 3: Cross multiply
    168,621.06x = 252,478.37 × 128,448.69
  4. Step 4: Simplify right side
    168,621.06x = 32,430,515,237.59
  5. Step 5: Solve for x
    x = 32,430,515,237.59/168,621.06
  6. Step 6: Final answer
    x = 192,327.79

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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.