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Finding the Fourth Proportional to 111,355.40, 166,814.40 and 103,482.20

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Solution

The fourth proportional to 111,355.40, 166,814.40 and 103,482.20 is: 155,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,355.40 : 166,814.40 = 103,482.20 : x
  2. Step 2: Convert to fraction form
    111,355.40/166,814.40 = 103,482.20/x
  3. Step 3: Cross multiply
    111,355.40x = 166,814.40 × 103,482.20
  4. Step 4: Simplify right side
    111,355.40x = 17,262,321,103.68
  5. Step 5: Solve for x
    x = 17,262,321,103.68/111,355.40
  6. Step 6: Final answer
    x = 155,020.06

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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.