Home / 144,848.51-199,890.31-81,186.31

Finding the Fourth Proportional to 144,848.51, 199,890.31 and 81,186.31

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Solution

The fourth proportional to 144,848.51, 199,890.31 and 81,186.31 is: 112,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,848.51 : 199,890.31 = 81,186.31 : x
  2. Step 2: Convert to fraction form
    144,848.51/199,890.31 = 81,186.31/x
  3. Step 3: Cross multiply
    144,848.51x = 199,890.31 × 81,186.31
  4. Step 4: Simplify right side
    144,848.51x = 16,228,356,673.66
  5. Step 5: Solve for x
    x = 16,228,356,673.66/144,848.51
  6. Step 6: Final answer
    x = 112,036.75

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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.