Home / 144,720.93-199,709.10-81,055.47

Finding the Fourth Proportional to 144,720.93, 199,709.10 and 81,055.47

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Solution

The fourth proportional to 144,720.93, 199,709.10 and 81,055.47 is: 111,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,720.93 : 199,709.10 = 81,055.47 : x
  2. Step 2: Convert to fraction form
    144,720.93/199,709.10 = 81,055.47/x
  3. Step 3: Cross multiply
    144,720.93x = 199,709.10 × 81,055.47
  4. Step 4: Simplify right side
    144,720.93x = 16,187,514,963.78
  5. Step 5: Solve for x
    x = 16,187,514,963.78/144,720.93
  6. Step 6: Final answer
    x = 111,853.31

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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.