Home / 111,433.58-153,754.68-66,126.30

Finding the Fourth Proportional to 111,433.58, 153,754.68 and 66,126.30

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Solution

The fourth proportional to 111,433.58, 153,754.68 and 66,126.30 is: 91,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,433.58 : 153,754.68 = 66,126.30 : x
  2. Step 2: Convert to fraction form
    111,433.58/153,754.68 = 66,126.30/x
  3. Step 3: Cross multiply
    111,433.58x = 153,754.68 × 66,126.30
  4. Step 4: Simplify right side
    111,433.58x = 10,167,228,096.08
  5. Step 5: Solve for x
    x = 10,167,228,096.08/111,433.58
  6. Step 6: Final answer
    x = 91,240.25

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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.