Home / 188,511.31-282,692.58-76,170.34

Finding the Fourth Proportional to 188,511.31, 282,692.58 and 76,170.34

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Solution

The fourth proportional to 188,511.31, 282,692.58 and 76,170.34 is: 114,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,511.31 : 282,692.58 = 76,170.34 : x
  2. Step 2: Convert to fraction form
    188,511.31/282,692.58 = 76,170.34/x
  3. Step 3: Cross multiply
    188,511.31x = 282,692.58 × 76,170.34
  4. Step 4: Simplify right side
    188,511.31x = 21,532,789,934.08
  5. Step 5: Solve for x
    x = 21,532,789,934.08/188,511.31
  6. Step 6: Final answer
    x = 114,225.45

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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.