Home / 135,308.85-186,721.61-74,882.04

Finding the Fourth Proportional to 135,308.85, 186,721.61 and 74,882.04

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Solution

The fourth proportional to 135,308.85, 186,721.61 and 74,882.04 is: 103,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,308.85 : 186,721.61 = 74,882.04 : x
  2. Step 2: Convert to fraction form
    135,308.85/186,721.61 = 74,882.04/x
  3. Step 3: Cross multiply
    135,308.85x = 186,721.61 × 74,882.04
  4. Step 4: Simplify right side
    135,308.85x = 13,982,094,694.47
  5. Step 5: Solve for x
    x = 13,982,094,694.47/135,308.85
  6. Step 6: Final answer
    x = 103,334.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.