Home / 136,979.13-205,430.41-58,039.37

Finding the Fourth Proportional to 136,979.13, 205,430.41 and 58,039.37

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Solution

The fourth proportional to 136,979.13, 205,430.41 and 58,039.37 is: 87,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,979.13 : 205,430.41 = 58,039.37 : x
  2. Step 2: Convert to fraction form
    136,979.13/205,430.41 = 58,039.37/x
  3. Step 3: Cross multiply
    136,979.13x = 205,430.41 × 58,039.37
  4. Step 4: Simplify right side
    136,979.13x = 11,923,051,391.00
  5. Step 5: Solve for x
    x = 11,923,051,391.00/136,979.13
  6. Step 6: Final answer
    x = 87,042.83

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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.