Home / 117,176.64-175,419.36-72,660.12

Finding the Fourth Proportional to 117,176.64, 175,419.36 and 72,660.12

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Solution

The fourth proportional to 117,176.64, 175,419.36 and 72,660.12 is: 108,775.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,176.64 : 175,419.36 = 72,660.12 : x
  2. Step 2: Convert to fraction form
    117,176.64/175,419.36 = 72,660.12/x
  3. Step 3: Cross multiply
    117,176.64x = 175,419.36 × 72,660.12
  4. Step 4: Simplify right side
    117,176.64x = 12,745,991,747.92
  5. Step 5: Solve for x
    x = 12,745,991,747.92/117,176.64
  6. Step 6: Final answer
    x = 108,775.88

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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.