Home / 208,635.42-312,814.88-75,498.36

Finding the Fourth Proportional to 208,635.42, 312,814.88 and 75,498.36

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Solution

The fourth proportional to 208,635.42, 312,814.88 and 75,498.36 is: 113,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,635.42 : 312,814.88 = 75,498.36 : x
  2. Step 2: Convert to fraction form
    208,635.42/312,814.88 = 75,498.36/x
  3. Step 3: Cross multiply
    208,635.42x = 312,814.88 × 75,498.36
  4. Step 4: Simplify right side
    208,635.42x = 23,617,010,046.11
  5. Step 5: Solve for x
    x = 23,617,010,046.11/208,635.42
  6. Step 6: Final answer
    x = 113,197.51

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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.