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Finding the Fourth Proportional to 111,323.52, 153,654.36 and 63,604.53

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Solution

The fourth proportional to 111,323.52, 153,654.36 and 63,604.53 is: 87,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,323.52 : 153,654.36 = 63,604.53 : x
  2. Step 2: Convert to fraction form
    111,323.52/153,654.36 = 63,604.53/x
  3. Step 3: Cross multiply
    111,323.52x = 153,654.36 × 63,604.53
  4. Step 4: Simplify right side
    111,323.52x = 9,773,113,350.25
  5. Step 5: Solve for x
    x = 9,773,113,350.25/111,323.52
  6. Step 6: Final answer
    x = 87,790.19

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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.