Home / 106,361.05-146,785.50-64,985.75

Finding the Fourth Proportional to 106,361.05, 146,785.50 and 64,985.75

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Solution

The fourth proportional to 106,361.05, 146,785.50 and 64,985.75 is: 89,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,361.05 : 146,785.50 = 64,985.75 : x
  2. Step 2: Convert to fraction form
    106,361.05/146,785.50 = 64,985.75/x
  3. Step 3: Cross multiply
    106,361.05x = 146,785.50 × 64,985.75
  4. Step 4: Simplify right side
    106,361.05x = 9,538,966,264.44
  5. Step 5: Solve for x
    x = 9,538,966,264.44/106,361.05
  6. Step 6: Final answer
    x = 89,684.77

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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.