Home / 151,921.63-209,656.07-83,942.98

Finding the Fourth Proportional to 151,921.63, 209,656.07 and 83,942.98

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Solution

The fourth proportional to 151,921.63, 209,656.07 and 83,942.98 is: 115,843.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,921.63 : 209,656.07 = 83,942.98 : x
  2. Step 2: Convert to fraction form
    151,921.63/209,656.07 = 83,942.98/x
  3. Step 3: Cross multiply
    151,921.63x = 209,656.07 × 83,942.98
  4. Step 4: Simplify right side
    151,921.63x = 17,599,155,290.89
  5. Step 5: Solve for x
    x = 17,599,155,290.89/151,921.63
  6. Step 6: Final answer
    x = 115,843.65

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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.