Home / 136,292.78-188,066.24-75,865.97

Finding the Fourth Proportional to 136,292.78, 188,066.24 and 75,865.97

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Solution

The fourth proportional to 136,292.78, 188,066.24 and 75,865.97 is: 104,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,292.78 : 188,066.24 = 75,865.97 : x
  2. Step 2: Convert to fraction form
    136,292.78/188,066.24 = 75,865.97/x
  3. Step 3: Cross multiply
    136,292.78x = 188,066.24 × 75,865.97
  4. Step 4: Simplify right side
    136,292.78x = 14,267,828,097.19
  5. Step 5: Solve for x
    x = 14,267,828,097.19/136,292.78
  6. Step 6: Final answer
    x = 104,685.13

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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.