Home / 105,715.62-158,262.39-70,568.10

Finding the Fourth Proportional to 105,715.62, 158,262.39 and 70,568.10

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Solution

The fourth proportional to 105,715.62, 158,262.39 and 70,568.10 is: 105,644.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,715.62 : 158,262.39 = 70,568.10 : x
  2. Step 2: Convert to fraction form
    105,715.62/158,262.39 = 70,568.10/x
  3. Step 3: Cross multiply
    105,715.62x = 158,262.39 × 70,568.10
  4. Step 4: Simplify right side
    105,715.62x = 11,168,276,163.76
  5. Step 5: Solve for x
    x = 11,168,276,163.76/105,715.62
  6. Step 6: Final answer
    x = 105,644.52

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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.