Home / 111,966.72-154,511.28-63,577.68

Finding the Fourth Proportional to 111,966.72, 154,511.28 and 63,577.68

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Solution

The fourth proportional to 111,966.72, 154,511.28 and 63,577.68 is: 87,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,966.72 : 154,511.28 = 63,577.68 : x
  2. Step 2: Convert to fraction form
    111,966.72/154,511.28 = 63,577.68/x
  3. Step 3: Cross multiply
    111,966.72x = 154,511.28 × 63,577.68
  4. Step 4: Simplify right side
    111,966.72x = 9,823,468,716.23
  5. Step 5: Solve for x
    x = 9,823,468,716.23/111,966.72
  6. Step 6: Final answer
    x = 87,735.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.