Home / 205,055.10-307,614.33-86,727.10

Finding the Fourth Proportional to 205,055.10, 307,614.33 and 86,727.10

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Solution

The fourth proportional to 205,055.10, 307,614.33 and 86,727.10 is: 130,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,055.10 : 307,614.33 = 86,727.10 : x
  2. Step 2: Convert to fraction form
    205,055.10/307,614.33 = 86,727.10/x
  3. Step 3: Cross multiply
    205,055.10x = 307,614.33 × 86,727.10
  4. Step 4: Simplify right side
    205,055.10x = 26,678,498,759.34
  5. Step 5: Solve for x
    x = 26,678,498,759.34/205,055.10
  6. Step 6: Final answer
    x = 130,104.05

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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.