Home / 212,087.20-292,685.92-115,297.56

Finding the Fourth Proportional to 212,087.20, 292,685.92 and 115,297.56

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Solution

The fourth proportional to 212,087.20, 292,685.92 and 115,297.56 is: 159,113.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,087.20 : 292,685.92 = 115,297.56 : x
  2. Step 2: Convert to fraction form
    212,087.20/292,685.92 = 115,297.56/x
  3. Step 3: Cross multiply
    212,087.20x = 292,685.92 × 115,297.56
  4. Step 4: Simplify right side
    212,087.20x = 33,745,972,422.36
  5. Step 5: Solve for x
    x = 33,745,972,422.36/212,087.20
  6. Step 6: Final answer
    x = 159,113.67

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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.