Home / 131,592.88-181,615.48-74,991.28

Finding the Fourth Proportional to 131,592.88, 181,615.48 and 74,991.28

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Solution

The fourth proportional to 131,592.88, 181,615.48 and 74,991.28 is: 103,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,592.88 : 181,615.48 = 74,991.28 : x
  2. Step 2: Convert to fraction form
    131,592.88/181,615.48 = 74,991.28/x
  3. Step 3: Cross multiply
    131,592.88x = 181,615.48 × 74,991.28
  4. Step 4: Simplify right side
    131,592.88x = 13,619,577,313.01
  5. Step 5: Solve for x
    x = 13,619,577,313.01/131,592.88
  6. Step 6: Final answer
    x = 103,497.83

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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.