Home / 186,776.21-279,907.34-80,032.39

Finding the Fourth Proportional to 186,776.21, 279,907.34 and 80,032.39

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Solution

The fourth proportional to 186,776.21, 279,907.34 and 80,032.39 is: 119,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,776.21 : 279,907.34 = 80,032.39 : x
  2. Step 2: Convert to fraction form
    186,776.21/279,907.34 = 80,032.39/x
  3. Step 3: Cross multiply
    186,776.21x = 279,907.34 × 80,032.39
  4. Step 4: Simplify right side
    186,776.21x = 22,401,652,748.99
  5. Step 5: Solve for x
    x = 22,401,652,748.99/186,776.21
  6. Step 6: Final answer
    x = 119,938.47

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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.