Home / 208,319.60-312,414.80-75,182.56

Finding the Fourth Proportional to 208,319.60, 312,414.80 and 75,182.56

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Solution

The fourth proportional to 208,319.60, 312,414.80 and 75,182.56 is: 112,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,319.60 : 312,414.80 = 75,182.56 : x
  2. Step 2: Convert to fraction form
    208,319.60/312,414.80 = 75,182.56/x
  3. Step 3: Cross multiply
    208,319.60x = 312,414.80 × 75,182.56
  4. Step 4: Simplify right side
    208,319.60x = 23,488,143,852.81
  5. Step 5: Solve for x
    x = 23,488,143,852.81/208,319.60
  6. Step 6: Final answer
    x = 112,750.52

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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.