Home / 134,949.88-186,247.23-78,361.25

Finding the Fourth Proportional to 134,949.88, 186,247.23 and 78,361.25

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Solution

The fourth proportional to 134,949.88, 186,247.23 and 78,361.25 is: 108,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,949.88 : 186,247.23 = 78,361.25 : x
  2. Step 2: Convert to fraction form
    134,949.88/186,247.23 = 78,361.25/x
  3. Step 3: Cross multiply
    134,949.88x = 186,247.23 × 78,361.25
  4. Step 4: Simplify right side
    134,949.88x = 14,594,565,751.84
  5. Step 5: Solve for x
    x = 14,594,565,751.84/134,949.88
  6. Step 6: Final answer
    x = 108,148.05

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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.