Home / 144,723.72-199,726.26-81,057.80

Finding the Fourth Proportional to 144,723.72, 199,726.26 and 81,057.80

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Solution

The fourth proportional to 144,723.72, 199,726.26 and 81,057.80 is: 111,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,723.72 : 199,726.26 = 81,057.80 : x
  2. Step 2: Convert to fraction form
    144,723.72/199,726.26 = 81,057.80/x
  3. Step 3: Cross multiply
    144,723.72x = 199,726.26 × 81,057.80
  4. Step 4: Simplify right side
    144,723.72x = 16,189,371,237.83
  5. Step 5: Solve for x
    x = 16,189,371,237.83/144,723.72
  6. Step 6: Final answer
    x = 111,863.98

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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.