Home / 136,878.08-205,324.48-43,391.12

Finding the Fourth Proportional to 136,878.08, 205,324.48 and 43,391.12

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Solution

The fourth proportional to 136,878.08, 205,324.48 and 43,391.12 is: 65,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,878.08 : 205,324.48 = 43,391.12 : x
  2. Step 2: Convert to fraction form
    136,878.08/205,324.48 = 43,391.12/x
  3. Step 3: Cross multiply
    136,878.08x = 205,324.48 × 43,391.12
  4. Step 4: Simplify right side
    136,878.08x = 8,909,259,150.62
  5. Step 5: Solve for x
    x = 8,909,259,150.62/136,878.08
  6. Step 6: Final answer
    x = 65,089.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.