Home / 208,069.07-287,135.31-112,575.77

Finding the Fourth Proportional to 208,069.07, 287,135.31 and 112,575.77

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Solution

The fourth proportional to 208,069.07, 287,135.31 and 112,575.77 is: 155,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,069.07 : 287,135.31 = 112,575.77 : x
  2. Step 2: Convert to fraction form
    208,069.07/287,135.31 = 112,575.77/x
  3. Step 3: Cross multiply
    208,069.07x = 287,135.31 × 112,575.77
  4. Step 4: Simplify right side
    208,069.07x = 32,324,477,181.76
  5. Step 5: Solve for x
    x = 32,324,477,181.76/208,069.07
  6. Step 6: Final answer
    x = 155,354.56

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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.