Home / 134,465.82-201,634.39-78,321.95

Finding the Fourth Proportional to 134,465.82, 201,634.39 and 78,321.95

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Solution

The fourth proportional to 134,465.82, 201,634.39 and 78,321.95 is: 117,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,465.82 : 201,634.39 = 78,321.95 : x
  2. Step 2: Convert to fraction form
    134,465.82/201,634.39 = 78,321.95/x
  3. Step 3: Cross multiply
    134,465.82x = 201,634.39 × 78,321.95
  4. Step 4: Simplify right side
    134,465.82x = 15,792,398,611.86
  5. Step 5: Solve for x
    x = 15,792,398,611.86/134,465.82
  6. Step 6: Final answer
    x = 117,445.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.