Home / 136,455.74-188,308.45-76,027.11

Finding the Fourth Proportional to 136,455.74, 188,308.45 and 76,027.11

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Solution

The fourth proportional to 136,455.74, 188,308.45 and 76,027.11 is: 104,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,455.74 : 188,308.45 = 76,027.11 : x
  2. Step 2: Convert to fraction form
    136,455.74/188,308.45 = 76,027.11/x
  3. Step 3: Cross multiply
    136,455.74x = 188,308.45 × 76,027.11
  4. Step 4: Simplify right side
    136,455.74x = 14,316,546,203.30
  5. Step 5: Solve for x
    x = 14,316,546,203.30/136,455.74
  6. Step 6: Final answer
    x = 104,917.14

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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.