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Finding the Fourth Proportional to 111,299.40, 153,646.37 and 63,543.52

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Solution

The fourth proportional to 111,299.40, 153,646.37 and 63,543.52 is: 87,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,299.40 : 153,646.37 = 63,543.52 : x
  2. Step 2: Convert to fraction form
    111,299.40/153,646.37 = 63,543.52/x
  3. Step 3: Cross multiply
    111,299.40x = 153,646.37 × 63,543.52
  4. Step 4: Simplify right side
    111,299.40x = 9,763,231,297.65
  5. Step 5: Solve for x
    x = 9,763,231,297.65/111,299.40
  6. Step 6: Final answer
    x = 87,720.43

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