Home / 205,971.32-308,962.38-65,729.81

Finding the Fourth Proportional to 205,971.32, 308,962.38 and 65,729.81

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Solution

The fourth proportional to 205,971.32, 308,962.38 and 65,729.81 is: 98,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,971.32 : 308,962.38 = 65,729.81 : x
  2. Step 2: Convert to fraction form
    205,971.32/308,962.38 = 65,729.81/x
  3. Step 3: Cross multiply
    205,971.32x = 308,962.38 × 65,729.81
  4. Step 4: Simplify right side
    205,971.32x = 20,308,038,534.55
  5. Step 5: Solve for x
    x = 20,308,038,534.55/205,971.32
  6. Step 6: Final answer
    x = 98,596.44

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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.