Home / 144,787.14-199,806.11-81,125.39

Finding the Fourth Proportional to 144,787.14, 199,806.11 and 81,125.39

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Solution

The fourth proportional to 144,787.14, 199,806.11 and 81,125.39 is: 111,952.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,787.14 : 199,806.11 = 81,125.39 : x
  2. Step 2: Convert to fraction form
    144,787.14/199,806.11 = 81,125.39/x
  3. Step 3: Cross multiply
    144,787.14x = 199,806.11 × 81,125.39
  4. Step 4: Simplify right side
    144,787.14x = 16,209,349,300.46
  5. Step 5: Solve for x
    x = 16,209,349,300.46/144,787.14
  6. Step 6: Final answer
    x = 111,952.96

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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.