Home / 116,911.72-175,315.74-81,867.88

Finding the Fourth Proportional to 116,911.72, 175,315.74 and 81,867.88

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Solution

The fourth proportional to 116,911.72, 175,315.74 and 81,867.88 is: 122,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,911.72 : 175,315.74 = 81,867.88 : x
  2. Step 2: Convert to fraction form
    116,911.72/175,315.74 = 81,867.88/x
  3. Step 3: Cross multiply
    116,911.72x = 175,315.74 × 81,867.88
  4. Step 4: Simplify right side
    116,911.72x = 14,352,727,964.43
  5. Step 5: Solve for x
    x = 14,352,727,964.43/116,911.72
  6. Step 6: Final answer
    x = 122,765.52

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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.