Home / 211,034.20-316,403.64-105,795.76

Finding the Fourth Proportional to 211,034.20, 316,403.64 and 105,795.76

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Solution

The fourth proportional to 211,034.20, 316,403.64 and 105,795.76 is: 158,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,034.20 : 316,403.64 = 105,795.76 : x
  2. Step 2: Convert to fraction form
    211,034.20/316,403.64 = 105,795.76/x
  3. Step 3: Cross multiply
    211,034.20x = 316,403.64 × 105,795.76
  4. Step 4: Simplify right side
    211,034.20x = 33,474,163,560.57
  5. Step 5: Solve for x
    x = 33,474,163,560.57/211,034.20
  6. Step 6: Final answer
    x = 158,619.62

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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.