Home / 123,267.12-170,108.62-66,678.48

Finding the Fourth Proportional to 123,267.12, 170,108.62 and 66,678.48

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Solution

The fourth proportional to 123,267.12, 170,108.62 and 66,678.48 is: 92,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,267.12 : 170,108.62 = 66,678.48 : x
  2. Step 2: Convert to fraction form
    123,267.12/170,108.62 = 66,678.48/x
  3. Step 3: Cross multiply
    123,267.12x = 170,108.62 × 66,678.48
  4. Step 4: Simplify right side
    123,267.12x = 11,342,584,216.50
  5. Step 5: Solve for x
    x = 11,342,584,216.50/123,267.12
  6. Step 6: Final answer
    x = 92,016.30

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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.