Home / 211,057.58-316,563.88-111,177.28

Finding the Fourth Proportional to 211,057.58, 316,563.88 and 111,177.28

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Solution

The fourth proportional to 211,057.58, 316,563.88 and 111,177.28 is: 166,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,057.58 : 316,563.88 = 111,177.28 : x
  2. Step 2: Convert to fraction form
    211,057.58/316,563.88 = 111,177.28/x
  3. Step 3: Cross multiply
    211,057.58x = 316,563.88 × 111,177.28
  4. Step 4: Simplify right side
    211,057.58x = 35,194,711,124.65
  5. Step 5: Solve for x
    x = 35,194,711,124.65/211,057.58
  6. Step 6: Final answer
    x = 166,754.07

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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.