Home / 208,067.12-312,026.80-74,911.62

Finding the Fourth Proportional to 208,067.12, 312,026.80 and 74,911.62

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Solution

The fourth proportional to 208,067.12, 312,026.80 and 74,911.62 is: 112,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,067.12 : 312,026.80 = 74,911.62 : x
  2. Step 2: Convert to fraction form
    208,067.12/312,026.80 = 74,911.62/x
  3. Step 3: Cross multiply
    208,067.12x = 312,026.80 × 74,911.62
  4. Step 4: Simplify right side
    208,067.12x = 23,374,433,071.42
  5. Step 5: Solve for x
    x = 23,374,433,071.42/208,067.12
  6. Step 6: Final answer
    x = 112,340.83

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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.