Home / 85,186.98-117,448.83-69,816.96

Finding the Fourth Proportional to 85,186.98, 117,448.83 and 69,816.96

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Solution

The fourth proportional to 85,186.98, 117,448.83 and 69,816.96 is: 96,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,186.98 : 117,448.83 = 69,816.96 : x
  2. Step 2: Convert to fraction form
    85,186.98/117,448.83 = 69,816.96/x
  3. Step 3: Cross multiply
    85,186.98x = 117,448.83 × 69,816.96
  4. Step 4: Simplify right side
    85,186.98x = 8,199,920,266.16
  5. Step 5: Solve for x
    x = 8,199,920,266.16/85,186.98
  6. Step 6: Final answer
    x = 96,257.91

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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.