Home / 117,981.84-162,815.16-70,236.84

Finding the Fourth Proportional to 117,981.84, 162,815.16 and 70,236.84

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Solution

The fourth proportional to 117,981.84, 162,815.16 and 70,236.84 is: 96,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,981.84 : 162,815.16 = 70,236.84 : x
  2. Step 2: Convert to fraction form
    117,981.84/162,815.16 = 70,236.84/x
  3. Step 3: Cross multiply
    117,981.84x = 162,815.16 × 70,236.84
  4. Step 4: Simplify right side
    117,981.84x = 11,435,622,342.49
  5. Step 5: Solve for x
    x = 11,435,622,342.49/117,981.84
  6. Step 6: Final answer
    x = 96,926.97

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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.