Home / 150,120.21-206,927.69-118,238.61

Finding the Fourth Proportional to 150,120.21, 206,927.69 and 118,238.61

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Solution

The fourth proportional to 150,120.21, 206,927.69 and 118,238.61 is: 162,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,120.21 : 206,927.69 = 118,238.61 : x
  2. Step 2: Convert to fraction form
    150,120.21/206,927.69 = 118,238.61/x
  3. Step 3: Cross multiply
    150,120.21x = 206,927.69 × 118,238.61
  4. Step 4: Simplify right side
    150,120.21x = 24,466,841,844.92
  5. Step 5: Solve for x
    x = 24,466,841,844.92/150,120.21
  6. Step 6: Final answer
    x = 162,981.67

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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.