Home / 105,981.24-158,915.88-46,788.96

Finding the Fourth Proportional to 105,981.24, 158,915.88 and 46,788.96

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Solution

The fourth proportional to 105,981.24, 158,915.88 and 46,788.96 is: 70,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,981.24 : 158,915.88 = 46,788.96 : x
  2. Step 2: Convert to fraction form
    105,981.24/158,915.88 = 46,788.96/x
  3. Step 3: Cross multiply
    105,981.24x = 158,915.88 × 46,788.96
  4. Step 4: Simplify right side
    105,981.24x = 7,435,508,752.68
  5. Step 5: Solve for x
    x = 7,435,508,752.68/105,981.24
  6. Step 6: Final answer
    x = 70,158.73

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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.