Home / 123,928.24-171,020.65-67,339.62

Finding the Fourth Proportional to 123,928.24, 171,020.65 and 67,339.62

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Solution

The fourth proportional to 123,928.24, 171,020.65 and 67,339.62 is: 92,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,928.24 : 171,020.65 = 67,339.62 : x
  2. Step 2: Convert to fraction form
    123,928.24/171,020.65 = 67,339.62/x
  3. Step 3: Cross multiply
    123,928.24x = 171,020.65 × 67,339.62
  4. Step 4: Simplify right side
    123,928.24x = 11,516,465,583.15
  5. Step 5: Solve for x
    x = 11,516,465,583.15/123,928.24
  6. Step 6: Final answer
    x = 92,928.50

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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.