Home / 136,486.40-188,346.36-76,053.92

Finding the Fourth Proportional to 136,486.40, 188,346.36 and 76,053.92

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Solution

The fourth proportional to 136,486.40, 188,346.36 and 76,053.92 is: 104,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,486.40 : 188,346.36 = 76,053.92 : x
  2. Step 2: Convert to fraction form
    136,486.40/188,346.36 = 76,053.92/x
  3. Step 3: Cross multiply
    136,486.40x = 188,346.36 × 76,053.92
  4. Step 4: Simplify right side
    136,486.40x = 14,324,478,995.73
  5. Step 5: Solve for x
    x = 14,324,478,995.73/136,486.40
  6. Step 6: Final answer
    x = 104,951.69

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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.