Home / 136,535.44-188,419.76-76,109.92

Finding the Fourth Proportional to 136,535.44, 188,419.76 and 76,109.92

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Solution

The fourth proportional to 136,535.44, 188,419.76 and 76,109.92 is: 105,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,535.44 : 188,419.76 = 76,109.92 : x
  2. Step 2: Convert to fraction form
    136,535.44/188,419.76 = 76,109.92/x
  3. Step 3: Cross multiply
    136,535.44x = 188,419.76 × 76,109.92
  4. Step 4: Simplify right side
    136,535.44x = 14,340,612,860.02
  5. Step 5: Solve for x
    x = 14,340,612,860.02/136,535.44
  6. Step 6: Final answer
    x = 105,032.16

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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.