Home / 120,975.42-181,328.67-91,297.02

Finding the Fourth Proportional to 120,975.42, 181,328.67 and 91,297.02

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Solution

The fourth proportional to 120,975.42, 181,328.67 and 91,297.02 is: 136,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975.42 : 181,328.67 = 91,297.02 : x
  2. Step 2: Convert to fraction form
    120,975.42/181,328.67 = 91,297.02/x
  3. Step 3: Cross multiply
    120,975.42x = 181,328.67 × 91,297.02
  4. Step 4: Simplify right side
    120,975.42x = 16,554,767,211.56
  5. Step 5: Solve for x
    x = 16,554,767,211.56/120,975.42
  6. Step 6: Final answer
    x = 136,844.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.