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Finding the Fourth Proportional to 184,560.80, 276,185.10 and 128,136.20

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Solution

The fourth proportional to 184,560.80, 276,185.10 and 128,136.20 is: 191,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,560.80 : 276,185.10 = 128,136.20 : x
  2. Step 2: Convert to fraction form
    184,560.80/276,185.10 = 128,136.20/x
  3. Step 3: Cross multiply
    184,560.80x = 276,185.10 × 128,136.20
  4. Step 4: Simplify right side
    184,560.80x = 35,389,309,210.62
  5. Step 5: Solve for x
    x = 35,389,309,210.62/184,560.80
  6. Step 6: Final answer
    x = 191,748.79

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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.