Home / 144,558.64-199,490.91-80,908.72

Finding the Fourth Proportional to 144,558.64, 199,490.91 and 80,908.72

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Solution

The fourth proportional to 144,558.64, 199,490.91 and 80,908.72 is: 111,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,558.64 : 199,490.91 = 80,908.72 : x
  2. Step 2: Convert to fraction form
    144,558.64/199,490.91 = 80,908.72/x
  3. Step 3: Cross multiply
    144,558.64x = 199,490.91 × 80,908.72
  4. Step 4: Simplify right side
    144,558.64x = 16,140,554,179.74
  5. Step 5: Solve for x
    x = 16,140,554,179.74/144,558.64
  6. Step 6: Final answer
    x = 111,654.03

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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.