Home / 191,828.12-287,825.12-102,977.88

Finding the Fourth Proportional to 191,828.12, 287,825.12 and 102,977.88

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Solution

The fourth proportional to 191,828.12, 287,825.12 and 102,977.88 is: 154,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,828.12 : 287,825.12 = 102,977.88 : x
  2. Step 2: Convert to fraction form
    191,828.12/287,825.12 = 102,977.88/x
  3. Step 3: Cross multiply
    191,828.12x = 287,825.12 × 102,977.88
  4. Step 4: Simplify right side
    191,828.12x = 29,639,620,668.35
  5. Step 5: Solve for x
    x = 29,639,620,668.35/191,828.12
  6. Step 6: Final answer
    x = 154,511.34

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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.