Home / 151,895.94-209,615.74-83,912.91

Finding the Fourth Proportional to 151,895.94, 209,615.74 and 83,912.91

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Solution

The fourth proportional to 151,895.94, 209,615.74 and 83,912.91 is: 115,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,895.94 : 209,615.74 = 83,912.91 : x
  2. Step 2: Convert to fraction form
    151,895.94/209,615.74 = 83,912.91/x
  3. Step 3: Cross multiply
    151,895.94x = 209,615.74 × 83,912.91
  4. Step 4: Simplify right side
    151,895.94x = 17,589,467,825.94
  5. Step 5: Solve for x
    x = 17,589,467,825.94/151,895.94
  6. Step 6: Final answer
    x = 115,799.46

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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.