Home / 205,376.02-308,047.82-65,135.86

Finding the Fourth Proportional to 205,376.02, 308,047.82 and 65,135.86

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Solution

The fourth proportional to 205,376.02, 308,047.82 and 65,135.86 is: 97,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,376.02 : 308,047.82 = 65,135.86 : x
  2. Step 2: Convert to fraction form
    205,376.02/308,047.82 = 65,135.86/x
  3. Step 3: Cross multiply
    205,376.02x = 308,047.82 × 65,135.86
  4. Step 4: Simplify right side
    205,376.02x = 20,064,959,676.83
  5. Step 5: Solve for x
    x = 20,064,959,676.83/205,376.02
  6. Step 6: Final answer
    x = 97,698.65

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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.