Home / 197,383.50-272,419.88-129,597.12

Finding the Fourth Proportional to 197,383.50, 272,419.88 and 129,597.12

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Solution

The fourth proportional to 197,383.50, 272,419.88 and 129,597.12 is: 178,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,383.50 : 272,419.88 = 129,597.12 : x
  2. Step 2: Convert to fraction form
    197,383.50/272,419.88 = 129,597.12/x
  3. Step 3: Cross multiply
    197,383.50x = 272,419.88 × 129,597.12
  4. Step 4: Simplify right side
    197,383.50x = 35,304,830,840.64
  5. Step 5: Solve for x
    x = 35,304,830,840.64/197,383.50
  6. Step 6: Final answer
    x = 178,864.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.