Home / 151,918.06-209,629.04-83,930.98

Finding the Fourth Proportional to 151,918.06, 209,629.04 and 83,930.98

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Solution

The fourth proportional to 151,918.06, 209,629.04 and 83,930.98 is: 115,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,918.06 : 209,629.04 = 83,930.98 : x
  2. Step 2: Convert to fraction form
    151,918.06/209,629.04 = 83,930.98/x
  3. Step 3: Cross multiply
    151,918.06x = 209,629.04 × 83,930.98
  4. Step 4: Simplify right side
    151,918.06x = 17,594,370,449.41
  5. Step 5: Solve for x
    x = 17,594,370,449.41/151,918.06
  6. Step 6: Final answer
    x = 115,814.87

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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.