Home / 136,852.20-188,845.16-76,419.25

Finding the Fourth Proportional to 136,852.20, 188,845.16 and 76,419.25

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Solution

The fourth proportional to 136,852.20, 188,845.16 and 76,419.25 is: 105,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,852.20 : 188,845.16 = 76,419.25 : x
  2. Step 2: Convert to fraction form
    136,852.20/188,845.16 = 76,419.25/x
  3. Step 3: Cross multiply
    136,852.20x = 188,845.16 × 76,419.25
  4. Step 4: Simplify right side
    136,852.20x = 14,431,404,639.12
  5. Step 5: Solve for x
    x = 14,431,404,639.12/136,852.20
  6. Step 6: Final answer
    x = 105,452.49

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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.