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Finding the Fourth Proportional to 144,218.16, 216,162 and 55,425.96

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Solution

The fourth proportional to 144,218.16, 216,162 and 55,425.96 is: 83,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,218.16 : 216,162 = 55,425.96 : x
  2. Step 2: Convert to fraction form
    144,218.16/216,162 = 55,425.96/x
  3. Step 3: Cross multiply
    144,218.16x = 216,162 × 55,425.96
  4. Step 4: Simplify right side
    144,218.16x = 11,980,986,365.52
  5. Step 5: Solve for x
    x = 11,980,986,365.52/144,218.16
  6. Step 6: Final answer
    x = 83,075.43

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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.