Home / 208,731.87-288,047.75-113,237.73

Finding the Fourth Proportional to 208,731.87, 288,047.75 and 113,237.73

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Solution

The fourth proportional to 208,731.87, 288,047.75 and 113,237.73 is: 156,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,731.87 : 288,047.75 = 113,237.73 : x
  2. Step 2: Convert to fraction form
    208,731.87/288,047.75 = 113,237.73/x
  3. Step 3: Cross multiply
    208,731.87x = 288,047.75 × 113,237.73
  4. Step 4: Simplify right side
    208,731.87x = 32,617,872,775.42
  5. Step 5: Solve for x
    x = 32,617,872,775.42/208,731.87
  6. Step 6: Final answer
    x = 156,266.85

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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.