Home / 113,128.62-169,623.18-38,241.69

Finding the Fourth Proportional to 113,128.62, 169,623.18 and 38,241.69

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Solution

The fourth proportional to 113,128.62, 169,623.18 and 38,241.69 is: 57,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,128.62 : 169,623.18 = 38,241.69 : x
  2. Step 2: Convert to fraction form
    113,128.62/169,623.18 = 38,241.69/x
  3. Step 3: Cross multiply
    113,128.62x = 169,623.18 × 38,241.69
  4. Step 4: Simplify right side
    113,128.62x = 6,486,677,066.37
  5. Step 5: Solve for x
    x = 6,486,677,066.37/113,128.62
  6. Step 6: Final answer
    x = 57,338.96

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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.