Home / 117,933.85-162,761.70-72,602.74

Finding the Fourth Proportional to 117,933.85, 162,761.70 and 72,602.74

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Solution

The fourth proportional to 117,933.85, 162,761.70 and 72,602.74 is: 100,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,933.85 : 162,761.70 = 72,602.74 : x
  2. Step 2: Convert to fraction form
    117,933.85/162,761.70 = 72,602.74/x
  3. Step 3: Cross multiply
    117,933.85x = 162,761.70 × 72,602.74
  4. Step 4: Simplify right side
    117,933.85x = 11,816,945,387.06
  5. Step 5: Solve for x
    x = 11,816,945,387.06/117,933.85
  6. Step 6: Final answer
    x = 100,199.78

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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.