Home / 445,148.81-667,713.63-108,191.35

Finding the Fourth Proportional to 445,148.81, 667,713.63 and 108,191.35

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Solution

The fourth proportional to 445,148.81, 667,713.63 and 108,191.35 is: 162,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,148.81 : 667,713.63 = 108,191.35 : x
  2. Step 2: Convert to fraction form
    445,148.81/667,713.63 = 108,191.35/x
  3. Step 3: Cross multiply
    445,148.81x = 667,713.63 × 108,191.35
  4. Step 4: Simplify right side
    445,148.81x = 72,240,835,918.99
  5. Step 5: Solve for x
    x = 72,240,835,918.99/445,148.81
  6. Step 6: Final answer
    x = 162,284.69

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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.