Home / 99,707.12-149,504.64-33,111.60

Finding the Fourth Proportional to 99,707.12, 149,504.64 and 33,111.60

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Solution

The fourth proportional to 99,707.12, 149,504.64 and 33,111.60 is: 49,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.12 : 149,504.64 = 33,111.60 : x
  2. Step 2: Convert to fraction form
    99,707.12/149,504.64 = 33,111.60/x
  3. Step 3: Cross multiply
    99,707.12x = 149,504.64 × 33,111.60
  4. Step 4: Simplify right side
    99,707.12x = 4,950,337,837.82
  5. Step 5: Solve for x
    x = 4,950,337,837.82/99,707.12
  6. Step 6: Final answer
    x = 49,648.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.