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Finding the Fourth Proportional to 101,563.56, 152,403.64 and 79,314.48

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Solution

The fourth proportional to 101,563.56, 152,403.64 and 79,314.48 is: 119,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,563.56 : 152,403.64 = 79,314.48 : x
  2. Step 2: Convert to fraction form
    101,563.56/152,403.64 = 79,314.48/x
  3. Step 3: Cross multiply
    101,563.56x = 152,403.64 × 79,314.48
  4. Step 4: Simplify right side
    101,563.56x = 12,087,815,456.71
  5. Step 5: Solve for x
    x = 12,087,815,456.71/101,563.56
  6. Step 6: Final answer
    x = 119,017.25

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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.