Home / 76,981.19-116,063.96-75,603.38

Finding the Fourth Proportional to 76,981.19, 116,063.96 and 75,603.38

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Solution

The fourth proportional to 76,981.19, 116,063.96 and 75,603.38 is: 113,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,981.19 : 116,063.96 = 75,603.38 : x
  2. Step 2: Convert to fraction form
    76,981.19/116,063.96 = 75,603.38/x
  3. Step 3: Cross multiply
    76,981.19x = 116,063.96 × 75,603.38
  4. Step 4: Simplify right side
    76,981.19x = 8,774,826,713.85
  5. Step 5: Solve for x
    x = 8,774,826,713.85/76,981.19
  6. Step 6: Final answer
    x = 113,986.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.