Home / 111,439.42-153,786.38-63,040.30

Finding the Fourth Proportional to 111,439.42, 153,786.38 and 63,040.30

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Solution

The fourth proportional to 111,439.42, 153,786.38 and 63,040.30 is: 86,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,439.42 : 153,786.38 = 63,040.30 : x
  2. Step 2: Convert to fraction form
    111,439.42/153,786.38 = 63,040.30/x
  3. Step 3: Cross multiply
    111,439.42x = 153,786.38 × 63,040.30
  4. Step 4: Simplify right side
    111,439.42x = 9,694,739,531.11
  5. Step 5: Solve for x
    x = 9,694,739,531.11/111,439.42
  6. Step 6: Final answer
    x = 86,995.60

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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.