Home / 208,180.62-287,289.96-112,687.28

Finding the Fourth Proportional to 208,180.62, 287,289.96 and 112,687.28

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Solution

The fourth proportional to 208,180.62, 287,289.96 and 112,687.28 is: 155,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,180.62 : 287,289.96 = 112,687.28 : x
  2. Step 2: Convert to fraction form
    208,180.62/287,289.96 = 112,687.28/x
  3. Step 3: Cross multiply
    208,180.62x = 287,289.96 × 112,687.28
  4. Step 4: Simplify right side
    208,180.62x = 32,373,924,163.71
  5. Step 5: Solve for x
    x = 32,373,924,163.71/208,180.62
  6. Step 6: Final answer
    x = 155,508.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.