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Finding the Fourth Proportional to 144,012.78, 216,059.88 and 49,263.48

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Solution

The fourth proportional to 144,012.78, 216,059.88 and 49,263.48 is: 73,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012.78 : 216,059.88 = 49,263.48 : x
  2. Step 2: Convert to fraction form
    144,012.78/216,059.88 = 49,263.48/x
  3. Step 3: Cross multiply
    144,012.78x = 216,059.88 × 49,263.48
  4. Step 4: Simplify right side
    144,012.78x = 10,643,861,577.18
  5. Step 5: Solve for x
    x = 10,643,861,577.18/144,012.78
  6. Step 6: Final answer
    x = 73,909.15

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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.