Home / 131,291.82-181,183.23-74,701.98

Finding the Fourth Proportional to 131,291.82, 181,183.23 and 74,701.98

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Solution

The fourth proportional to 131,291.82, 181,183.23 and 74,701.98 is: 103,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,291.82 : 181,183.23 = 74,701.98 : x
  2. Step 2: Convert to fraction form
    131,291.82/181,183.23 = 74,701.98/x
  3. Step 3: Cross multiply
    131,291.82x = 181,183.23 × 74,701.98
  4. Step 4: Simplify right side
    131,291.82x = 13,534,746,023.80
  5. Step 5: Solve for x
    x = 13,534,746,023.80/131,291.82
  6. Step 6: Final answer
    x = 103,089.03

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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.