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Finding the Fourth Proportional to 100,173.48, 150,259.89 and 77,410.45

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Solution

The fourth proportional to 100,173.48, 150,259.89 and 77,410.45 is: 116,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,173.48 : 150,259.89 = 77,410.45 : x
  2. Step 2: Convert to fraction form
    100,173.48/150,259.89 = 77,410.45/x
  3. Step 3: Cross multiply
    100,173.48x = 150,259.89 × 77,410.45
  4. Step 4: Simplify right side
    100,173.48x = 11,631,686,179.96
  5. Step 5: Solve for x
    x = 11,631,686,179.96/100,173.48
  6. Step 6: Final answer
    x = 116,115.43

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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.