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Finding the Fourth Proportional to 123,903.20, 186,000.60 and 123,028.40

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Solution

The fourth proportional to 123,903.20, 186,000.60 and 123,028.40 is: 184,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,903.20 : 186,000.60 = 123,028.40 : x
  2. Step 2: Convert to fraction form
    123,903.20/186,000.60 = 123,028.40/x
  3. Step 3: Cross multiply
    123,903.20x = 186,000.60 × 123,028.40
  4. Step 4: Simplify right side
    123,903.20x = 22,883,356,217.04
  5. Step 5: Solve for x
    x = 22,883,356,217.04/123,903.20
  6. Step 6: Final answer
    x = 184,687.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.