Home / 144,787.39-199,806.46-81,125.64

Finding the Fourth Proportional to 144,787.39, 199,806.46 and 81,125.64

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Solution

The fourth proportional to 144,787.39, 199,806.46 and 81,125.64 is: 111,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,787.39 : 199,806.46 = 81,125.64 : x
  2. Step 2: Convert to fraction form
    144,787.39/199,806.46 = 81,125.64/x
  3. Step 3: Cross multiply
    144,787.39x = 199,806.46 × 81,125.64
  4. Step 4: Simplify right side
    144,787.39x = 16,209,426,943.63
  5. Step 5: Solve for x
    x = 16,209,426,943.63/144,787.39
  6. Step 6: Final answer
    x = 111,953.31

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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.