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Finding the Fourth Proportional to 149,021.70, 223,572.15 and 64,745.70

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Solution

The fourth proportional to 149,021.70, 223,572.15 and 64,745.70 is: 97,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,021.70 : 223,572.15 = 64,745.70 : x
  2. Step 2: Convert to fraction form
    149,021.70/223,572.15 = 64,745.70/x
  3. Step 3: Cross multiply
    149,021.70x = 223,572.15 × 64,745.70
  4. Step 4: Simplify right side
    149,021.70x = 14,475,335,352.26
  5. Step 5: Solve for x
    x = 14,475,335,352.26/149,021.70
  6. Step 6: Final answer
    x = 97,135.76

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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.