Home / 136,763.73-188,751.78-76,346.91

Finding the Fourth Proportional to 136,763.73, 188,751.78 and 76,346.91

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Solution

The fourth proportional to 136,763.73, 188,751.78 and 76,346.91 is: 105,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,763.73 : 188,751.78 = 76,346.91 : x
  2. Step 2: Convert to fraction form
    136,763.73/188,751.78 = 76,346.91/x
  3. Step 3: Cross multiply
    136,763.73x = 188,751.78 × 76,346.91
  4. Step 4: Simplify right side
    136,763.73x = 14,410,615,160.00
  5. Step 5: Solve for x
    x = 14,410,615,160.00/136,763.73
  6. Step 6: Final answer
    x = 105,368.69

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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.