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Finding the Fourth Proportional to 144,159.93, 198,940.86 and 80,497.71

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Solution

The fourth proportional to 144,159.93, 198,940.86 and 80,497.71 is: 111,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,159.93 : 198,940.86 = 80,497.71 : x
  2. Step 2: Convert to fraction form
    144,159.93/198,940.86 = 80,497.71/x
  3. Step 3: Cross multiply
    144,159.93x = 198,940.86 × 80,497.71
  4. Step 4: Simplify right side
    144,159.93x = 16,014,283,655.43
  5. Step 5: Solve for x
    x = 16,014,283,655.43/144,159.93
  6. Step 6: Final answer
    x = 111,086.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.