Home / 131,327.67-181,232.91-74,739.03

Finding the Fourth Proportional to 131,327.67, 181,232.91 and 74,739.03

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Solution

The fourth proportional to 131,327.67, 181,232.91 and 74,739.03 is: 103,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,327.67 : 181,232.91 = 74,739.03 : x
  2. Step 2: Convert to fraction form
    131,327.67/181,232.91 = 74,739.03/x
  3. Step 3: Cross multiply
    131,327.67x = 181,232.91 × 74,739.03
  4. Step 4: Simplify right side
    131,327.67x = 13,545,171,897.48
  5. Step 5: Solve for x
    x = 13,545,171,897.48/131,327.67
  6. Step 6: Final answer
    x = 103,140.27

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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.