Home / 141,692.25-195,536.63-78,030.50

Finding the Fourth Proportional to 141,692.25, 195,536.63 and 78,030.50

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Solution

The fourth proportional to 141,692.25, 195,536.63 and 78,030.50 is: 107,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,692.25 : 195,536.63 = 78,030.50 : x
  2. Step 2: Convert to fraction form
    141,692.25/195,536.63 = 78,030.50/x
  3. Step 3: Cross multiply
    141,692.25x = 195,536.63 × 78,030.50
  4. Step 4: Simplify right side
    141,692.25x = 15,257,821,007.22
  5. Step 5: Solve for x
    x = 15,257,821,007.22/141,692.25
  6. Step 6: Final answer
    x = 107,682.82

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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.