Home / 144,623.88-216,852.77-77,072.75

Finding the Fourth Proportional to 144,623.88, 216,852.77 and 77,072.75

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Solution

The fourth proportional to 144,623.88, 216,852.77 and 77,072.75 is: 115,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,623.88 : 216,852.77 = 77,072.75 : x
  2. Step 2: Convert to fraction form
    144,623.88/216,852.77 = 77,072.75/x
  3. Step 3: Cross multiply
    144,623.88x = 216,852.77 × 77,072.75
  4. Step 4: Simplify right side
    144,623.88x = 16,713,437,859.39
  5. Step 5: Solve for x
    x = 16,713,437,859.39/144,623.88
  6. Step 6: Final answer
    x = 115,564.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.