Home / 155,891.35-214,986.59-102,156.85

Finding the Fourth Proportional to 155,891.35, 214,986.59 and 102,156.85

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Solution

The fourth proportional to 155,891.35, 214,986.59 and 102,156.85 is: 140,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,891.35 : 214,986.59 = 102,156.85 : x
  2. Step 2: Convert to fraction form
    155,891.35/214,986.59 = 102,156.85/x
  3. Step 3: Cross multiply
    155,891.35x = 214,986.59 × 102,156.85
  4. Step 4: Simplify right side
    155,891.35x = 21,962,352,826.64
  5. Step 5: Solve for x
    x = 21,962,352,826.64/155,891.35
  6. Step 6: Final answer
    x = 140,882.43

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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.