Home / 211,137.56-316,717.20-53,367.36

Finding the Fourth Proportional to 211,137.56, 316,717.20 and 53,367.36

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Solution

The fourth proportional to 211,137.56, 316,717.20 and 53,367.36 is: 80,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,137.56 : 316,717.20 = 53,367.36 : x
  2. Step 2: Convert to fraction form
    211,137.56/316,717.20 = 53,367.36/x
  3. Step 3: Cross multiply
    211,137.56x = 316,717.20 × 53,367.36
  4. Step 4: Simplify right side
    211,137.56x = 16,902,360,830.59
  5. Step 5: Solve for x
    x = 16,902,360,830.59/211,137.56
  6. Step 6: Final answer
    x = 80,053.78

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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.