Home / 102,732.90-154,099.35-71,043.27

Finding the Fourth Proportional to 102,732.90, 154,099.35 and 71,043.27

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Solution

The fourth proportional to 102,732.90, 154,099.35 and 71,043.27 is: 106,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,732.90 : 154,099.35 = 71,043.27 : x
  2. Step 2: Convert to fraction form
    102,732.90/154,099.35 = 71,043.27/x
  3. Step 3: Cross multiply
    102,732.90x = 154,099.35 × 71,043.27
  4. Step 4: Simplify right side
    102,732.90x = 10,947,721,728.87
  5. Step 5: Solve for x
    x = 10,947,721,728.87/102,732.90
  6. Step 6: Final answer
    x = 106,564.91

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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.