Home / 118,938.75-164,135.48-68,637.75

Finding the Fourth Proportional to 118,938.75, 164,135.48 and 68,637.75

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Solution

The fourth proportional to 118,938.75, 164,135.48 and 68,637.75 is: 94,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,938.75 : 164,135.48 = 68,637.75 : x
  2. Step 2: Convert to fraction form
    118,938.75/164,135.48 = 68,637.75/x
  3. Step 3: Cross multiply
    118,938.75x = 164,135.48 × 68,637.75
  4. Step 4: Simplify right side
    118,938.75x = 11,265,890,042.37
  5. Step 5: Solve for x
    x = 11,265,890,042.37/118,938.75
  6. Step 6: Final answer
    x = 94,720.10

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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.