Home / 136,166.76-187,904.07-78,796.89

Finding the Fourth Proportional to 136,166.76, 187,904.07 and 78,796.89

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Solution

The fourth proportional to 136,166.76, 187,904.07 and 78,796.89 is: 108,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,166.76 : 187,904.07 = 78,796.89 : x
  2. Step 2: Convert to fraction form
    136,166.76/187,904.07 = 78,796.89/x
  3. Step 3: Cross multiply
    136,166.76x = 187,904.07 × 78,796.89
  4. Step 4: Simplify right side
    136,166.76x = 14,806,256,334.34
  5. Step 5: Solve for x
    x = 14,806,256,334.34/136,166.76
  6. Step 6: Final answer
    x = 108,736.20

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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.