Home / 109,961.28-164,849.58-76,582.80

Finding the Fourth Proportional to 109,961.28, 164,849.58 and 76,582.80

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Solution

The fourth proportional to 109,961.28, 164,849.58 and 76,582.80 is: 114,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,961.28 : 164,849.58 = 76,582.80 : x
  2. Step 2: Convert to fraction form
    109,961.28/164,849.58 = 76,582.80/x
  3. Step 3: Cross multiply
    109,961.28x = 164,849.58 × 76,582.80
  4. Step 4: Simplify right side
    109,961.28x = 12,624,642,415.22
  5. Step 5: Solve for x
    x = 12,624,642,415.22/109,961.28
  6. Step 6: Final answer
    x = 114,809.89

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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.