Home / 131,164.20-181,001.34-77,466.51

Finding the Fourth Proportional to 131,164.20, 181,001.34 and 77,466.51

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Solution

The fourth proportional to 131,164.20, 181,001.34 and 77,466.51 is: 106,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,164.20 : 181,001.34 = 77,466.51 : x
  2. Step 2: Convert to fraction form
    131,164.20/181,001.34 = 77,466.51/x
  3. Step 3: Cross multiply
    131,164.20x = 181,001.34 × 77,466.51
  4. Step 4: Simplify right side
    131,164.20x = 14,021,542,115.12
  5. Step 5: Solve for x
    x = 14,021,542,115.12/131,164.20
  6. Step 6: Final answer
    x = 106,900.68

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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.