Home / 111,220.97-153,554.66-85,679.24

Finding the Fourth Proportional to 111,220.97, 153,554.66 and 85,679.24

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Solution

The fourth proportional to 111,220.97, 153,554.66 and 85,679.24 is: 118,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.97 : 153,554.66 = 85,679.24 : x
  2. Step 2: Convert to fraction form
    111,220.97/153,554.66 = 85,679.24/x
  3. Step 3: Cross multiply
    111,220.97x = 153,554.66 × 85,679.24
  4. Step 4: Simplify right side
    111,220.97x = 13,156,446,567.26
  5. Step 5: Solve for x
    x = 13,156,446,567.26/111,220.97
  6. Step 6: Final answer
    x = 118,291.06

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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.