Home / 113,518.20-170,295.30-38,645.40

Finding the Fourth Proportional to 113,518.20, 170,295.30 and 38,645.40

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Solution

The fourth proportional to 113,518.20, 170,295.30 and 38,645.40 is: 57,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,518.20 : 170,295.30 = 38,645.40 : x
  2. Step 2: Convert to fraction form
    113,518.20/170,295.30 = 38,645.40/x
  3. Step 3: Cross multiply
    113,518.20x = 170,295.30 × 38,645.40
  4. Step 4: Simplify right side
    113,518.20x = 6,581,129,986.62
  5. Step 5: Solve for x
    x = 6,581,129,986.62/113,518.20
  6. Step 6: Final answer
    x = 57,974.23

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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.