Home / 183,811.68-253,595.52-120,186.72

Finding the Fourth Proportional to 183,811.68, 253,595.52 and 120,186.72

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Solution

The fourth proportional to 183,811.68, 253,595.52 and 120,186.72 is: 165,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,811.68 : 253,595.52 = 120,186.72 : x
  2. Step 2: Convert to fraction form
    183,811.68/253,595.52 = 120,186.72/x
  3. Step 3: Cross multiply
    183,811.68x = 253,595.52 × 120,186.72
  4. Step 4: Simplify right side
    183,811.68x = 30,478,813,755.49
  5. Step 5: Solve for x
    x = 30,478,813,755.49/183,811.68
  6. Step 6: Final answer
    x = 165,815.44

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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.