Home / 118,078.40-162,945.60-64,361.36

Finding the Fourth Proportional to 118,078.40, 162,945.60 and 64,361.36

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Solution

The fourth proportional to 118,078.40, 162,945.60 and 64,361.36 is: 88,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,078.40 : 162,945.60 = 64,361.36 : x
  2. Step 2: Convert to fraction form
    118,078.40/162,945.60 = 64,361.36/x
  3. Step 3: Cross multiply
    118,078.40x = 162,945.60 × 64,361.36
  4. Step 4: Simplify right side
    118,078.40x = 10,487,400,422.02
  5. Step 5: Solve for x
    x = 10,487,400,422.02/118,078.40
  6. Step 6: Final answer
    x = 88,817.26

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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.