Home / 117,331.68-175,742.64-72,215.52

Finding the Fourth Proportional to 117,331.68, 175,742.64 and 72,215.52

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Solution

The fourth proportional to 117,331.68, 175,742.64 and 72,215.52 is: 108,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.68 : 175,742.64 = 72,215.52 : x
  2. Step 2: Convert to fraction form
    117,331.68/175,742.64 = 72,215.52/x
  3. Step 3: Cross multiply
    117,331.68x = 175,742.64 × 72,215.52
  4. Step 4: Simplify right side
    117,331.68x = 12,691,346,133.77
  5. Step 5: Solve for x
    x = 12,691,346,133.77/117,331.68
  6. Step 6: Final answer
    x = 108,166.41

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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.