Home / 144,849.51-199,891.69-81,187.31

Finding the Fourth Proportional to 144,849.51, 199,891.69 and 81,187.31

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Solution

The fourth proportional to 144,849.51, 199,891.69 and 81,187.31 is: 112,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,849.51 : 199,891.69 = 81,187.31 : x
  2. Step 2: Convert to fraction form
    144,849.51/199,891.69 = 81,187.31/x
  3. Step 3: Cross multiply
    144,849.51x = 199,891.69 × 81,187.31
  4. Step 4: Simplify right side
    144,849.51x = 16,228,668,602.45
  5. Step 5: Solve for x
    x = 16,228,668,602.45/144,849.51
  6. Step 6: Final answer
    x = 112,038.13

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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.