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Finding the Fourth Proportional to 101,280.90, 151,921.35 and 27,408.90

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Solution

The fourth proportional to 101,280.90, 151,921.35 and 27,408.90 is: 41,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280.90 : 151,921.35 = 27,408.90 : x
  2. Step 2: Convert to fraction form
    101,280.90/151,921.35 = 27,408.90/x
  3. Step 3: Cross multiply
    101,280.90x = 151,921.35 × 27,408.90
  4. Step 4: Simplify right side
    101,280.90x = 4,163,997,090.02
  5. Step 5: Solve for x
    x = 4,163,997,090.02/101,280.90
  6. Step 6: Final answer
    x = 41,113.35

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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.