Home / 133,090.13-199,559.86-54,111.49

Finding the Fourth Proportional to 133,090.13, 199,559.86 and 54,111.49

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Solution

The fourth proportional to 133,090.13, 199,559.86 and 54,111.49 is: 81,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.13 : 199,559.86 = 54,111.49 : x
  2. Step 2: Convert to fraction form
    133,090.13/199,559.86 = 54,111.49/x
  3. Step 3: Cross multiply
    133,090.13x = 199,559.86 × 54,111.49
  4. Step 4: Simplify right side
    133,090.13x = 10,798,481,368.79
  5. Step 5: Solve for x
    x = 10,798,481,368.79/133,090.13
  6. Step 6: Final answer
    x = 81,136.61

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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.