Home / 140,363.20-193,692.96-76,688.32

Finding the Fourth Proportional to 140,363.20, 193,692.96 and 76,688.32

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Solution

The fourth proportional to 140,363.20, 193,692.96 and 76,688.32 is: 105,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,363.20 : 193,692.96 = 76,688.32 : x
  2. Step 2: Convert to fraction form
    140,363.20/193,692.96 = 76,688.32/x
  3. Step 3: Cross multiply
    140,363.20x = 193,692.96 × 76,688.32
  4. Step 4: Simplify right side
    140,363.20x = 14,853,987,698.23
  5. Step 5: Solve for x
    x = 14,853,987,698.23/140,363.20
  6. Step 6: Final answer
    x = 105,825.37

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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.