Home / 117,988.20-162,811.62-70,243.56

Finding the Fourth Proportional to 117,988.20, 162,811.62 and 70,243.56

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Solution

The fourth proportional to 117,988.20, 162,811.62 and 70,243.56 is: 96,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,988.20 : 162,811.62 = 70,243.56 : x
  2. Step 2: Convert to fraction form
    117,988.20/162,811.62 = 70,243.56/x
  3. Step 3: Cross multiply
    117,988.20x = 162,811.62 × 70,243.56
  4. Step 4: Simplify right side
    117,988.20x = 11,436,467,798.17
  5. Step 5: Solve for x
    x = 11,436,467,798.17/117,988.20
  6. Step 6: Final answer
    x = 96,928.91

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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.