Home / 111,840.55-154,298.62-66,520.44

Finding the Fourth Proportional to 111,840.55, 154,298.62 and 66,520.44

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Solution

The fourth proportional to 111,840.55, 154,298.62 and 66,520.44 is: 91,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,840.55 : 154,298.62 = 66,520.44 : x
  2. Step 2: Convert to fraction form
    111,840.55/154,298.62 = 66,520.44/x
  3. Step 3: Cross multiply
    111,840.55x = 154,298.62 × 66,520.44
  4. Step 4: Simplify right side
    111,840.55x = 10,264,012,176.94
  5. Step 5: Solve for x
    x = 10,264,012,176.94/111,840.55
  6. Step 6: Final answer
    x = 91,773.62

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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.