Home / 205,015.16-307,544.62-86,698.46

Finding the Fourth Proportional to 205,015.16, 307,544.62 and 86,698.46

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Solution

The fourth proportional to 205,015.16, 307,544.62 and 86,698.46 is: 130,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,015.16 : 307,544.62 = 86,698.46 : x
  2. Step 2: Convert to fraction form
    205,015.16/307,544.62 = 86,698.46/x
  3. Step 3: Cross multiply
    205,015.16x = 307,544.62 × 86,698.46
  4. Step 4: Simplify right side
    205,015.16x = 26,663,644,935.29
  5. Step 5: Solve for x
    x = 26,663,644,935.29/205,015.16
  6. Step 6: Final answer
    x = 130,056.94

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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.