Home / 207,836.58-311,303.72-127,631.14

Finding the Fourth Proportional to 207,836.58, 311,303.72 and 127,631.14

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Solution

The fourth proportional to 207,836.58, 311,303.72 and 127,631.14 is: 191,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,836.58 : 311,303.72 = 127,631.14 : x
  2. Step 2: Convert to fraction form
    207,836.58/311,303.72 = 127,631.14/x
  3. Step 3: Cross multiply
    207,836.58x = 311,303.72 × 127,631.14
  4. Step 4: Simplify right side
    207,836.58x = 39,732,048,669.84
  5. Step 5: Solve for x
    x = 39,732,048,669.84/207,836.58
  6. Step 6: Final answer
    x = 191,169.66

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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.