Home / 113,190.40-169,811.12-38,306.31

Finding the Fourth Proportional to 113,190.40, 169,811.12 and 38,306.31

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Solution

The fourth proportional to 113,190.40, 169,811.12 and 38,306.31 is: 57,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,190.40 : 169,811.12 = 38,306.31 : x
  2. Step 2: Convert to fraction form
    113,190.40/169,811.12 = 38,306.31/x
  3. Step 3: Cross multiply
    113,190.40x = 169,811.12 × 38,306.31
  4. Step 4: Simplify right side
    113,190.40x = 6,504,837,404.17
  5. Step 5: Solve for x
    x = 6,504,837,404.17/113,190.40
  6. Step 6: Final answer
    x = 57,468.10

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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.