Home / 207,350.85-311,075.63-67,109.47

Finding the Fourth Proportional to 207,350.85, 311,075.63 and 67,109.47

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Solution

The fourth proportional to 207,350.85, 311,075.63 and 67,109.47 is: 100,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,350.85 : 311,075.63 = 67,109.47 : x
  2. Step 2: Convert to fraction form
    207,350.85/311,075.63 = 67,109.47/x
  3. Step 3: Cross multiply
    207,350.85x = 311,075.63 × 67,109.47
  4. Step 4: Simplify right side
    207,350.85x = 20,876,120,659.22
  5. Step 5: Solve for x
    x = 20,876,120,659.22/207,350.85
  6. Step 6: Final answer
    x = 100,680.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.