Home / 136,495.39-188,361.09-76,064.71

Finding the Fourth Proportional to 136,495.39, 188,361.09 and 76,064.71

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Solution

The fourth proportional to 136,495.39, 188,361.09 and 76,064.71 is: 104,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,495.39 : 188,361.09 = 76,064.71 : x
  2. Step 2: Convert to fraction form
    136,495.39/188,361.09 = 76,064.71/x
  3. Step 3: Cross multiply
    136,495.39x = 188,361.09 × 76,064.71
  4. Step 4: Simplify right side
    136,495.39x = 14,327,631,686.13
  5. Step 5: Solve for x
    x = 14,327,631,686.13/136,495.39
  6. Step 6: Final answer
    x = 104,967.88

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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.