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Finding the Fourth Proportional to 144,143.00, 216,110.54 and 87,969.90

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Solution

The fourth proportional to 144,143.00, 216,110.54 and 87,969.90 is: 131,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,143.00 : 216,110.54 = 87,969.90 : x
  2. Step 2: Convert to fraction form
    144,143.00/216,110.54 = 87,969.90/x
  3. Step 3: Cross multiply
    144,143.00x = 216,110.54 × 87,969.90
  4. Step 4: Simplify right side
    144,143.00x = 19,011,222,812.67
  5. Step 5: Solve for x
    x = 19,011,222,812.67/144,143.00
  6. Step 6: Final answer
    x = 131,891.41

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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.