Home / 136,427.88-188,276.15-75,998.51

Finding the Fourth Proportional to 136,427.88, 188,276.15 and 75,998.51

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Solution

The fourth proportional to 136,427.88, 188,276.15 and 75,998.51 is: 104,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,427.88 : 188,276.15 = 75,998.51 : x
  2. Step 2: Convert to fraction form
    136,427.88/188,276.15 = 75,998.51/x
  3. Step 3: Cross multiply
    136,427.88x = 188,276.15 × 75,998.51
  4. Step 4: Simplify right side
    136,427.88x = 14,308,706,868.54
  5. Step 5: Solve for x
    x = 14,308,706,868.54/136,427.88
  6. Step 6: Final answer
    x = 104,881.11

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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.