Home / 144,799.94-199,823.73-81,138.17

Finding the Fourth Proportional to 144,799.94, 199,823.73 and 81,138.17

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Solution

The fourth proportional to 144,799.94, 199,823.73 and 81,138.17 is: 111,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,799.94 : 199,823.73 = 81,138.17 : x
  2. Step 2: Convert to fraction form
    144,799.94/199,823.73 = 81,138.17/x
  3. Step 3: Cross multiply
    144,799.94x = 199,823.73 × 81,138.17
  4. Step 4: Simplify right side
    144,799.94x = 16,213,331,774.77
  5. Step 5: Solve for x
    x = 16,213,331,774.77/144,799.94
  6. Step 6: Final answer
    x = 111,970.57

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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.