Home / 205,610.08-308,447.78-72,531.04

Finding the Fourth Proportional to 205,610.08, 308,447.78 and 72,531.04

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Solution

The fourth proportional to 205,610.08, 308,447.78 and 72,531.04 is: 108,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,610.08 : 308,447.78 = 72,531.04 : x
  2. Step 2: Convert to fraction form
    205,610.08/308,447.78 = 72,531.04/x
  3. Step 3: Cross multiply
    205,610.08x = 308,447.78 × 72,531.04
  4. Step 4: Simplify right side
    205,610.08x = 22,372,038,269.09
  5. Step 5: Solve for x
    x = 22,372,038,269.09/205,610.08
  6. Step 6: Final answer
    x = 108,808.08

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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.