Home / 134,361.45-185,445.32-77,039.28

Finding the Fourth Proportional to 134,361.45, 185,445.32 and 77,039.28

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Solution

The fourth proportional to 134,361.45, 185,445.32 and 77,039.28 is: 106,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,361.45 : 185,445.32 = 77,039.28 : x
  2. Step 2: Convert to fraction form
    134,361.45/185,445.32 = 77,039.28/x
  3. Step 3: Cross multiply
    134,361.45x = 185,445.32 × 77,039.28
  4. Step 4: Simplify right side
    134,361.45x = 14,286,573,546.97
  5. Step 5: Solve for x
    x = 14,286,573,546.97/134,361.45
  6. Step 6: Final answer
    x = 106,329.41

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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.