Home / 111,529.56-153,860.58-66,209.34

Finding the Fourth Proportional to 111,529.56, 153,860.58 and 66,209.34

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Solution

The fourth proportional to 111,529.56, 153,860.58 and 66,209.34 is: 91,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,529.56 : 153,860.58 = 66,209.34 : x
  2. Step 2: Convert to fraction form
    111,529.56/153,860.58 = 66,209.34/x
  3. Step 3: Cross multiply
    111,529.56x = 153,860.58 × 66,209.34
  4. Step 4: Simplify right side
    111,529.56x = 10,187,007,453.82
  5. Step 5: Solve for x
    x = 10,187,007,453.82/111,529.56
  6. Step 6: Final answer
    x = 91,339.08

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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.