Home / 161,787.20-242,583.60-83,055.20

Finding the Fourth Proportional to 161,787.20, 242,583.60 and 83,055.20

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Solution

The fourth proportional to 161,787.20, 242,583.60 and 83,055.20 is: 124,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,787.20 : 242,583.60 = 83,055.20 : x
  2. Step 2: Convert to fraction form
    161,787.20/242,583.60 = 83,055.20/x
  3. Step 3: Cross multiply
    161,787.20x = 242,583.60 × 83,055.20
  4. Step 4: Simplify right side
    161,787.20x = 20,147,829,414.72
  5. Step 5: Solve for x
    x = 20,147,829,414.72/161,787.20
  6. Step 6: Final answer
    x = 124,532.90

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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.