Home / 136,662.12-188,594.76-76,236.72

Finding the Fourth Proportional to 136,662.12, 188,594.76 and 76,236.72

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Solution

The fourth proportional to 136,662.12, 188,594.76 and 76,236.72 is: 105,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,662.12 : 188,594.76 = 76,236.72 : x
  2. Step 2: Convert to fraction form
    136,662.12/188,594.76 = 76,236.72/x
  3. Step 3: Cross multiply
    136,662.12x = 188,594.76 × 76,236.72
  4. Step 4: Simplify right side
    136,662.12x = 14,377,845,911.59
  5. Step 5: Solve for x
    x = 14,377,845,911.59/136,662.12
  6. Step 6: Final answer
    x = 105,207.25

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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.