Home / 199,537.50-299,318.94-81,144.12

Finding the Fourth Proportional to 199,537.50, 299,318.94 and 81,144.12

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Solution

The fourth proportional to 199,537.50, 299,318.94 and 81,144.12 is: 121,721.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,537.50 : 299,318.94 = 81,144.12 : x
  2. Step 2: Convert to fraction form
    199,537.50/299,318.94 = 81,144.12/x
  3. Step 3: Cross multiply
    199,537.50x = 299,318.94 × 81,144.12
  4. Step 4: Simplify right side
    199,537.50x = 24,287,971,985.63
  5. Step 5: Solve for x
    x = 24,287,971,985.63/199,537.50
  6. Step 6: Final answer
    x = 121,721.34

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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.