Home / 105,179.66-145,147.91-57,433.05

Finding the Fourth Proportional to 105,179.66, 145,147.91 and 57,433.05

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Solution

The fourth proportional to 105,179.66, 145,147.91 and 57,433.05 is: 79,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,179.66 : 145,147.91 = 57,433.05 : x
  2. Step 2: Convert to fraction form
    105,179.66/145,147.91 = 57,433.05/x
  3. Step 3: Cross multiply
    105,179.66x = 145,147.91 × 57,433.05
  4. Step 4: Simplify right side
    105,179.66x = 8,336,286,885.26
  5. Step 5: Solve for x
    x = 8,336,286,885.26/105,179.66
  6. Step 6: Final answer
    x = 79,257.60

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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.