Home / 109,603.05-151,235.99-66,560.15

Finding the Fourth Proportional to 109,603.05, 151,235.99 and 66,560.15

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Solution

The fourth proportional to 109,603.05, 151,235.99 and 66,560.15 is: 91,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,603.05 : 151,235.99 = 66,560.15 : x
  2. Step 2: Convert to fraction form
    109,603.05/151,235.99 = 66,560.15/x
  3. Step 3: Cross multiply
    109,603.05x = 151,235.99 × 66,560.15
  4. Step 4: Simplify right side
    109,603.05x = 10,066,289,090.82
  5. Step 5: Solve for x
    x = 10,066,289,090.82/109,603.05
  6. Step 6: Final answer
    x = 91,843.15

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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.