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Finding the Fourth Proportional to 145,122.00, 200,264.60 and 80,589.60

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Solution

The fourth proportional to 145,122.00, 200,264.60 and 80,589.60 is: 111,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,122.00 : 200,264.60 = 80,589.60 : x
  2. Step 2: Convert to fraction form
    145,122.00/200,264.60 = 80,589.60/x
  3. Step 3: Cross multiply
    145,122.00x = 200,264.60 × 80,589.60
  4. Step 4: Simplify right side
    145,122.00x = 16,139,244,209.63
  5. Step 5: Solve for x
    x = 16,139,244,209.63/145,122.00
  6. Step 6: Final answer
    x = 111,211.56

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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.