Home / 208,319.42-312,414.65-75,182.82

Finding the Fourth Proportional to 208,319.42, 312,414.65 and 75,182.82

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Solution

The fourth proportional to 208,319.42, 312,414.65 and 75,182.82 is: 112,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,319.42 : 312,414.65 = 75,182.82 : x
  2. Step 2: Convert to fraction form
    208,319.42/312,414.65 = 75,182.82/x
  3. Step 3: Cross multiply
    208,319.42x = 312,414.65 × 75,182.82
  4. Step 4: Simplify right side
    208,319.42x = 23,488,214,020.40
  5. Step 5: Solve for x
    x = 23,488,214,020.40/208,319.42
  6. Step 6: Final answer
    x = 112,750.96

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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.