Home / 208,194.95-312,101.07-75,042.62

Finding the Fourth Proportional to 208,194.95, 312,101.07 and 75,042.62

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Solution

The fourth proportional to 208,194.95, 312,101.07 and 75,042.62 is: 112,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,194.95 : 312,101.07 = 75,042.62 : x
  2. Step 2: Convert to fraction form
    208,194.95/312,101.07 = 75,042.62/x
  3. Step 3: Cross multiply
    208,194.95x = 312,101.07 × 75,042.62
  4. Step 4: Simplify right side
    208,194.95x = 23,420,881,997.60
  5. Step 5: Solve for x
    x = 23,420,881,997.60/208,194.95
  6. Step 6: Final answer
    x = 112,494.96

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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.