Home / 218,939.95-302,136.64-123,446.08

Finding the Fourth Proportional to 218,939.95, 302,136.64 and 123,446.08

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Solution

The fourth proportional to 218,939.95, 302,136.64 and 123,446.08 is: 170,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,939.95 : 302,136.64 = 123,446.08 : x
  2. Step 2: Convert to fraction form
    218,939.95/302,136.64 = 123,446.08/x
  3. Step 3: Cross multiply
    218,939.95x = 302,136.64 × 123,446.08
  4. Step 4: Simplify right side
    218,939.95x = 37,297,583,832.37
  5. Step 5: Solve for x
    x = 37,297,583,832.37/218,939.95
  6. Step 6: Final answer
    x = 170,355.31

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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.