Home / 190,402.12-285,537.30-78,050.44

Finding the Fourth Proportional to 190,402.12, 285,537.30 and 78,050.44

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Solution

The fourth proportional to 190,402.12, 285,537.30 and 78,050.44 is: 117,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,402.12 : 285,537.30 = 78,050.44 : x
  2. Step 2: Convert to fraction form
    190,402.12/285,537.30 = 78,050.44/x
  3. Step 3: Cross multiply
    190,402.12x = 285,537.30 × 78,050.44
  4. Step 4: Simplify right side
    190,402.12x = 22,286,311,901.41
  5. Step 5: Solve for x
    x = 22,286,311,901.41/190,402.12
  6. Step 6: Final answer
    x = 117,048.65

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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.