Home / 104,901.07-144,818.30-81,881.53

Finding the Fourth Proportional to 104,901.07, 144,818.30 and 81,881.53

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Solution

The fourth proportional to 104,901.07, 144,818.30 and 81,881.53 is: 113,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,901.07 : 144,818.30 = 81,881.53 : x
  2. Step 2: Convert to fraction form
    104,901.07/144,818.30 = 81,881.53/x
  3. Step 3: Cross multiply
    104,901.07x = 144,818.30 × 81,881.53
  4. Step 4: Simplify right side
    104,901.07x = 11,857,943,818.66
  5. Step 5: Solve for x
    x = 11,857,943,818.66/104,901.07
  6. Step 6: Final answer
    x = 113,039.31

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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.