Home / 105,981.40-158,873.28-35,811.64

Finding the Fourth Proportional to 105,981.40, 158,873.28 and 35,811.64

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Solution

The fourth proportional to 105,981.40, 158,873.28 and 35,811.64 is: 53,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,981.40 : 158,873.28 = 35,811.64 : x
  2. Step 2: Convert to fraction form
    105,981.40/158,873.28 = 35,811.64/x
  3. Step 3: Cross multiply
    105,981.40x = 158,873.28 × 35,811.64
  4. Step 4: Simplify right side
    105,981.40x = 5,689,512,708.98
  5. Step 5: Solve for x
    x = 5,689,512,708.98/105,981.40
  6. Step 6: Final answer
    x = 53,684.07

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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.