Home / 212,857.20-293,756.16-117,363.78

Finding the Fourth Proportional to 212,857.20, 293,756.16 and 117,363.78

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Solution

The fourth proportional to 212,857.20, 293,756.16 and 117,363.78 is: 161,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,857.20 : 293,756.16 = 117,363.78 : x
  2. Step 2: Convert to fraction form
    212,857.20/293,756.16 = 117,363.78/x
  3. Step 3: Cross multiply
    212,857.20x = 293,756.16 × 117,363.78
  4. Step 4: Simplify right side
    212,857.20x = 34,476,333,335.88
  5. Step 5: Solve for x
    x = 34,476,333,335.88/212,857.20
  6. Step 6: Final answer
    x = 161,969.31

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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.