Home / 102,916.40-154,374.60-82,180.40

Finding the Fourth Proportional to 102,916.40, 154,374.60 and 82,180.40

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Solution

The fourth proportional to 102,916.40, 154,374.60 and 82,180.40 is: 123,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,916.40 : 154,374.60 = 82,180.40 : x
  2. Step 2: Convert to fraction form
    102,916.40/154,374.60 = 82,180.40/x
  3. Step 3: Cross multiply
    102,916.40x = 154,374.60 × 82,180.40
  4. Step 4: Simplify right side
    102,916.40x = 12,686,566,377.84
  5. Step 5: Solve for x
    x = 12,686,566,377.84/102,916.40
  6. Step 6: Final answer
    x = 123,270.60

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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.