Home / 105,765.08-158,564.39-52,420.37

Finding the Fourth Proportional to 105,765.08, 158,564.39 and 52,420.37

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Solution

The fourth proportional to 105,765.08, 158,564.39 and 52,420.37 is: 78,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,765.08 : 158,564.39 = 52,420.37 : x
  2. Step 2: Convert to fraction form
    105,765.08/158,564.39 = 52,420.37/x
  3. Step 3: Cross multiply
    105,765.08x = 158,564.39 × 52,420.37
  4. Step 4: Simplify right side
    105,765.08x = 8,312,002,937.70
  5. Step 5: Solve for x
    x = 8,312,002,937.70/105,765.08
  6. Step 6: Final answer
    x = 78,589.30

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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.