Home / 135,869.36-203,791.96-47,120.88

Finding the Fourth Proportional to 135,869.36, 203,791.96 and 47,120.88

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Solution

The fourth proportional to 135,869.36, 203,791.96 and 47,120.88 is: 70,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,869.36 : 203,791.96 = 47,120.88 : x
  2. Step 2: Convert to fraction form
    135,869.36/203,791.96 = 47,120.88/x
  3. Step 3: Cross multiply
    135,869.36x = 203,791.96 × 47,120.88
  4. Step 4: Simplify right side
    135,869.36x = 9,602,856,492.12
  5. Step 5: Solve for x
    x = 9,602,856,492.12/135,869.36
  6. Step 6: Final answer
    x = 70,677.13

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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.