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Finding the Fourth Proportional to 145,745.32, 218,625.72 and 45,913.27

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Solution

The fourth proportional to 145,745.32, 218,625.72 and 45,913.27 is: 68,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,745.32 : 218,625.72 = 45,913.27 : x
  2. Step 2: Convert to fraction form
    145,745.32/218,625.72 = 45,913.27/x
  3. Step 3: Cross multiply
    145,745.32x = 218,625.72 × 45,913.27
  4. Step 4: Simplify right side
    145,745.32x = 10,037,821,711.30
  5. Step 5: Solve for x
    x = 10,037,821,711.30/145,745.32
  6. Step 6: Final answer
    x = 68,872.34

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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.