Home / 99,494.21-137,297.41-54,172.05

Finding the Fourth Proportional to 99,494.21, 137,297.41 and 54,172.05

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Solution

The fourth proportional to 99,494.21, 137,297.41 and 54,172.05 is: 74,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,494.21 : 137,297.41 = 54,172.05 : x
  2. Step 2: Convert to fraction form
    99,494.21/137,297.41 = 54,172.05/x
  3. Step 3: Cross multiply
    99,494.21x = 137,297.41 × 54,172.05
  4. Step 4: Simplify right side
    99,494.21x = 7,437,682,159.39
  5. Step 5: Solve for x
    x = 7,437,682,159.39/99,494.21
  6. Step 6: Final answer
    x = 74,754.92

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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.