Home / 205,669.29-308,536.35-87,341.25

Finding the Fourth Proportional to 205,669.29, 308,536.35 and 87,341.25

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Solution

The fourth proportional to 205,669.29, 308,536.35 and 87,341.25 is: 131,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,669.29 : 308,536.35 = 87,341.25 : x
  2. Step 2: Convert to fraction form
    205,669.29/308,536.35 = 87,341.25/x
  3. Step 3: Cross multiply
    205,669.29x = 308,536.35 × 87,341.25
  4. Step 4: Simplify right side
    205,669.29x = 26,947,950,479.44
  5. Step 5: Solve for x
    x = 26,947,950,479.44/205,669.29
  6. Step 6: Final answer
    x = 131,025.64

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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.