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Finding the Fourth Proportional to 111,112.62, 166,686.26 and 36,215.40

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Solution

The fourth proportional to 111,112.62, 166,686.26 and 36,215.40 is: 54,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,112.62 : 166,686.26 = 36,215.40 : x
  2. Step 2: Convert to fraction form
    111,112.62/166,686.26 = 36,215.40/x
  3. Step 3: Cross multiply
    111,112.62x = 166,686.26 × 36,215.40
  4. Step 4: Simplify right side
    111,112.62x = 6,036,609,580.40
  5. Step 5: Solve for x
    x = 6,036,609,580.40/111,112.62
  6. Step 6: Final answer
    x = 54,328.75

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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.