Home / 105,732.55-158,595.78-39,171.20

Finding the Fourth Proportional to 105,732.55, 158,595.78 and 39,171.20

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Solution

The fourth proportional to 105,732.55, 158,595.78 and 39,171.20 is: 58,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,732.55 : 158,595.78 = 39,171.20 : x
  2. Step 2: Convert to fraction form
    105,732.55/158,595.78 = 39,171.20/x
  3. Step 3: Cross multiply
    105,732.55x = 158,595.78 × 39,171.20
  4. Step 4: Simplify right side
    105,732.55x = 6,212,387,017.54
  5. Step 5: Solve for x
    x = 6,212,387,017.54/105,732.55
  6. Step 6: Final answer
    x = 58,755.67

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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.