Home / 106,435.64-146,728.56-83,735.21

Finding the Fourth Proportional to 106,435.64, 146,728.56 and 83,735.21

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Solution

The fourth proportional to 106,435.64, 146,728.56 and 83,735.21 is: 115,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,435.64 : 146,728.56 = 83,735.21 : x
  2. Step 2: Convert to fraction form
    106,435.64/146,728.56 = 83,735.21/x
  3. Step 3: Cross multiply
    106,435.64x = 146,728.56 × 83,735.21
  4. Step 4: Simplify right side
    106,435.64x = 12,286,346,784.60
  5. Step 5: Solve for x
    x = 12,286,346,784.60/106,435.64
  6. Step 6: Final answer
    x = 115,434.52

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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.