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Finding the Fourth Proportional to 123,366.80, 184,612.80 and 84,000.80

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Solution

The fourth proportional to 123,366.80, 184,612.80 and 84,000.80 is: 125,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,366.80 : 184,612.80 = 84,000.80 : x
  2. Step 2: Convert to fraction form
    123,366.80/184,612.80 = 84,000.80/x
  3. Step 3: Cross multiply
    123,366.80x = 184,612.80 × 84,000.80
  4. Step 4: Simplify right side
    123,366.80x = 15,507,622,890.24
  5. Step 5: Solve for x
    x = 15,507,622,890.24/123,366.80
  6. Step 6: Final answer
    x = 125,703.37

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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.