Home / 110,266.65-152,202.24-87,645.78

Finding the Fourth Proportional to 110,266.65, 152,202.24 and 87,645.78

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Solution

The fourth proportional to 110,266.65, 152,202.24 and 87,645.78 is: 120,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,266.65 : 152,202.24 = 87,645.78 : x
  2. Step 2: Convert to fraction form
    110,266.65/152,202.24 = 87,645.78/x
  3. Step 3: Cross multiply
    110,266.65x = 152,202.24 × 87,645.78
  4. Step 4: Simplify right side
    110,266.65x = 13,339,884,042.55
  5. Step 5: Solve for x
    x = 13,339,884,042.55/110,266.65
  6. Step 6: Final answer
    x = 120,978.41

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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.