Home / 205,317.99-307,923.53-86,928.39

Finding the Fourth Proportional to 205,317.99, 307,923.53 and 86,928.39

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Solution

The fourth proportional to 205,317.99, 307,923.53 and 86,928.39 is: 130,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,317.99 : 307,923.53 = 86,928.39 : x
  2. Step 2: Convert to fraction form
    205,317.99/307,923.53 = 86,928.39/x
  3. Step 3: Cross multiply
    205,317.99x = 307,923.53 × 86,928.39
  4. Step 4: Simplify right side
    205,317.99x = 26,767,296,271.37
  5. Step 5: Solve for x
    x = 26,767,296,271.37/205,317.99
  6. Step 6: Final answer
    x = 130,369.95

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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.