Home / 151,193.69-208,647.24-87,530.12

Finding the Fourth Proportional to 151,193.69, 208,647.24 and 87,530.12

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Solution

The fourth proportional to 151,193.69, 208,647.24 and 87,530.12 is: 120,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,193.69 : 208,647.24 = 87,530.12 : x
  2. Step 2: Convert to fraction form
    151,193.69/208,647.24 = 87,530.12/x
  3. Step 3: Cross multiply
    151,193.69x = 208,647.24 × 87,530.12
  4. Step 4: Simplify right side
    151,193.69x = 18,262,917,858.18
  5. Step 5: Solve for x
    x = 18,262,917,858.18/151,193.69
  6. Step 6: Final answer
    x = 120,791.54

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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.