Home / 131,905.26-197,899.81-43,138.58

Finding the Fourth Proportional to 131,905.26, 197,899.81 and 43,138.58

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Solution

The fourth proportional to 131,905.26, 197,899.81 and 43,138.58 is: 64,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,905.26 : 197,899.81 = 43,138.58 : x
  2. Step 2: Convert to fraction form
    131,905.26/197,899.81 = 43,138.58/x
  3. Step 3: Cross multiply
    131,905.26x = 197,899.81 × 43,138.58
  4. Step 4: Simplify right side
    131,905.26x = 8,537,115,688.32
  5. Step 5: Solve for x
    x = 8,537,115,688.32/131,905.26
  6. Step 6: Final answer
    x = 64,721.57

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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.