Home / 140,671.50-211,059.09-74,108.94

Finding the Fourth Proportional to 140,671.50, 211,059.09 and 74,108.94

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Solution

The fourth proportional to 140,671.50, 211,059.09 and 74,108.94 is: 111,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,671.50 : 211,059.09 = 74,108.94 : x
  2. Step 2: Convert to fraction form
    140,671.50/211,059.09 = 74,108.94/x
  3. Step 3: Cross multiply
    140,671.50x = 211,059.09 × 74,108.94
  4. Step 4: Simplify right side
    140,671.50x = 15,641,365,437.26
  5. Step 5: Solve for x
    x = 15,641,365,437.26/140,671.50
  6. Step 6: Final answer
    x = 111,190.72

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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.