Home / 136,395.90-188,232.16-75,966.54

Finding the Fourth Proportional to 136,395.90, 188,232.16 and 75,966.54

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Solution

The fourth proportional to 136,395.90, 188,232.16 and 75,966.54 is: 104,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,395.90 : 188,232.16 = 75,966.54 : x
  2. Step 2: Convert to fraction form
    136,395.90/188,232.16 = 75,966.54/x
  3. Step 3: Cross multiply
    136,395.90x = 188,232.16 × 75,966.54
  4. Step 4: Simplify right side
    136,395.90x = 14,299,345,911.93
  5. Step 5: Solve for x
    x = 14,299,345,911.93/136,395.90
  6. Step 6: Final answer
    x = 104,837.07

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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.