Home / 205,772.10-308,524.95-87,411.30

Finding the Fourth Proportional to 205,772.10, 308,524.95 and 87,411.30

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Solution

The fourth proportional to 205,772.10, 308,524.95 and 87,411.30 is: 131,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,772.10 : 308,524.95 = 87,411.30 : x
  2. Step 2: Convert to fraction form
    205,772.10/308,524.95 = 87,411.30/x
  3. Step 3: Cross multiply
    205,772.10x = 308,524.95 × 87,411.30
  4. Step 4: Simplify right side
    205,772.10x = 26,968,566,961.94
  5. Step 5: Solve for x
    x = 26,968,566,961.94/205,772.10
  6. Step 6: Final answer
    x = 131,060.37

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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.