Home / 116,716.20-175,074.30-72,429.45

Finding the Fourth Proportional to 116,716.20, 175,074.30 and 72,429.45

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Solution

The fourth proportional to 116,716.20, 175,074.30 and 72,429.45 is: 108,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,716.20 : 175,074.30 = 72,429.45 : x
  2. Step 2: Convert to fraction form
    116,716.20/175,074.30 = 72,429.45/x
  3. Step 3: Cross multiply
    116,716.20x = 175,074.30 × 72,429.45
  4. Step 4: Simplify right side
    116,716.20x = 12,680,535,258.14
  5. Step 5: Solve for x
    x = 12,680,535,258.14/116,716.20
  6. Step 6: Final answer
    x = 108,644.18

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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.