Home / 111,497.22-153,855.78-66,167.34

Finding the Fourth Proportional to 111,497.22, 153,855.78 and 66,167.34

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Solution

The fourth proportional to 111,497.22, 153,855.78 and 66,167.34 is: 91,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,497.22 : 153,855.78 = 66,167.34 : x
  2. Step 2: Convert to fraction form
    111,497.22/153,855.78 = 66,167.34/x
  3. Step 3: Cross multiply
    111,497.22x = 153,855.78 × 66,167.34
  4. Step 4: Simplify right side
    111,497.22x = 10,180,227,706.23
  5. Step 5: Solve for x
    x = 10,180,227,706.23/111,497.22
  6. Step 6: Final answer
    x = 91,304.77

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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.