Home / 135,877.05-187,506.72-75,445.92

Finding the Fourth Proportional to 135,877.05, 187,506.72 and 75,445.92

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Solution

The fourth proportional to 135,877.05, 187,506.72 and 75,445.92 is: 104,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,877.05 : 187,506.72 = 75,445.92 : x
  2. Step 2: Convert to fraction form
    135,877.05/187,506.72 = 75,445.92/x
  3. Step 3: Cross multiply
    135,877.05x = 187,506.72 × 75,445.92
  4. Step 4: Simplify right side
    135,877.05x = 14,146,616,996.58
  5. Step 5: Solve for x
    x = 14,146,616,996.58/135,877.05
  6. Step 6: Final answer
    x = 104,113.37

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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.