Home / 208,272.42-312,343.99-75,135.33

Finding the Fourth Proportional to 208,272.42, 312,343.99 and 75,135.33

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Solution

The fourth proportional to 208,272.42, 312,343.99 and 75,135.33 is: 112,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,272.42 : 312,343.99 = 75,135.33 : x
  2. Step 2: Convert to fraction form
    208,272.42/312,343.99 = 75,135.33/x
  3. Step 3: Cross multiply
    208,272.42x = 312,343.99 × 75,135.33
  4. Step 4: Simplify right side
    208,272.42x = 23,468,068,574.33
  5. Step 5: Solve for x
    x = 23,468,068,574.33/208,272.42
  6. Step 6: Final answer
    x = 112,679.67

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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.