Home / 131,991.14-182,158.29-74,642.54

Finding the Fourth Proportional to 131,991.14, 182,158.29 and 74,642.54

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Solution

The fourth proportional to 131,991.14, 182,158.29 and 74,642.54 is: 103,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.14 : 182,158.29 = 74,642.54 : x
  2. Step 2: Convert to fraction form
    131,991.14/182,158.29 = 74,642.54/x
  3. Step 3: Cross multiply
    131,991.14x = 182,158.29 × 74,642.54
  4. Step 4: Simplify right side
    131,991.14x = 13,596,756,536.87
  5. Step 5: Solve for x
    x = 13,596,756,536.87/131,991.14
  6. Step 6: Final answer
    x = 103,012.64

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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.