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Finding the Fourth Proportional to 111,918.80, 167,732.40 and 45,304.40

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Solution

The fourth proportional to 111,918.80, 167,732.40 and 45,304.40 is: 67,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,918.80 : 167,732.40 = 45,304.40 : x
  2. Step 2: Convert to fraction form
    111,918.80/167,732.40 = 45,304.40/x
  3. Step 3: Cross multiply
    111,918.80x = 167,732.40 × 45,304.40
  4. Step 4: Simplify right side
    111,918.80x = 7,599,015,742.56
  5. Step 5: Solve for x
    x = 7,599,015,742.56/111,918.80
  6. Step 6: Final answer
    x = 67,897.58

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1.5x scale

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.