Home / 145,576.32-200,898.39-81,914.12

Finding the Fourth Proportional to 145,576.32, 200,898.39 and 81,914.12

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Solution

The fourth proportional to 145,576.32, 200,898.39 and 81,914.12 is: 113,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,576.32 : 200,898.39 = 81,914.12 : x
  2. Step 2: Convert to fraction form
    145,576.32/200,898.39 = 81,914.12/x
  3. Step 3: Cross multiply
    145,576.32x = 200,898.39 × 81,914.12
  4. Step 4: Simplify right side
    145,576.32x = 16,456,413,821.77
  5. Step 5: Solve for x
    x = 16,456,413,821.77/145,576.32
  6. Step 6: Final answer
    x = 113,043.21

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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.