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Finding the Fourth Proportional to 144,110.80, 216,004.20 and 69,266.80

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Solution

The fourth proportional to 144,110.80, 216,004.20 and 69,266.80 is: 103,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,110.80 : 216,004.20 = 69,266.80 : x
  2. Step 2: Convert to fraction form
    144,110.80/216,004.20 = 69,266.80/x
  3. Step 3: Cross multiply
    144,110.80x = 216,004.20 × 69,266.80
  4. Step 4: Simplify right side
    144,110.80x = 14,961,919,720.56
  5. Step 5: Solve for x
    x = 14,961,919,720.56/144,110.80
  6. Step 6: Final answer
    x = 103,822.33

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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.