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Finding the Fourth Proportional to 117,651.57, 162,277.08 and 77,352.45

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Solution

The fourth proportional to 117,651.57, 162,277.08 and 77,352.45 is: 106,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,651.57 : 162,277.08 = 77,352.45 : x
  2. Step 2: Convert to fraction form
    117,651.57/162,277.08 = 77,352.45/x
  3. Step 3: Cross multiply
    117,651.57x = 162,277.08 × 77,352.45
  4. Step 4: Simplify right side
    117,651.57x = 12,552,529,716.85
  5. Step 5: Solve for x
    x = 12,552,529,716.85/117,651.57
  6. Step 6: Final answer
    x = 106,692.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.