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Finding the Fourth Proportional to 134,597, 185,747.70 and 74,984.84

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Solution

The fourth proportional to 134,597, 185,747.70 and 74,984.84 is: 103,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,597 : 185,747.70 = 74,984.84 : x
  2. Step 2: Convert to fraction form
    134,597/185,747.70 = 74,984.84/x
  3. Step 3: Cross multiply
    134,597x = 185,747.70 × 74,984.84
  4. Step 4: Simplify right side
    134,597x = 13,928,261,564.87
  5. Step 5: Solve for x
    x = 13,928,261,564.87/134,597
  6. Step 6: Final answer
    x = 103,481.22

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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.