Home / 151,554.22-209,135.10-83,571.69

Finding the Fourth Proportional to 151,554.22, 209,135.10 and 83,571.69

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Solution

The fourth proportional to 151,554.22, 209,135.10 and 83,571.69 is: 115,323.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,554.22 : 209,135.10 = 83,571.69 : x
  2. Step 2: Convert to fraction form
    151,554.22/209,135.10 = 83,571.69/x
  3. Step 3: Cross multiply
    151,554.22x = 209,135.10 × 83,571.69
  4. Step 4: Simplify right side
    151,554.22x = 17,477,773,745.32
  5. Step 5: Solve for x
    x = 17,477,773,745.32/151,554.22
  6. Step 6: Final answer
    x = 115,323.57

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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.