Home / 155,826.20-214,964.96-102,087.56

Finding the Fourth Proportional to 155,826.20, 214,964.96 and 102,087.56

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Solution

The fourth proportional to 155,826.20, 214,964.96 and 102,087.56 is: 140,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,826.20 : 214,964.96 = 102,087.56 : x
  2. Step 2: Convert to fraction form
    155,826.20/214,964.96 = 102,087.56/x
  3. Step 3: Cross multiply
    155,826.20x = 214,964.96 × 102,087.56
  4. Step 4: Simplify right side
    155,826.20x = 21,945,248,251.90
  5. Step 5: Solve for x
    x = 21,945,248,251.90/155,826.20
  6. Step 6: Final answer
    x = 140,831.57

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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.