Home / 161,916.20-242,768.70-145,327.40

Finding the Fourth Proportional to 161,916.20, 242,768.70 and 145,327.40

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Solution

The fourth proportional to 161,916.20, 242,768.70 and 145,327.40 is: 217,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,916.20 : 242,768.70 = 145,327.40 : x
  2. Step 2: Convert to fraction form
    161,916.20/242,768.70 = 145,327.40/x
  3. Step 3: Cross multiply
    161,916.20x = 242,768.70 × 145,327.40
  4. Step 4: Simplify right side
    161,916.20x = 35,280,943,972.38
  5. Step 5: Solve for x
    x = 35,280,943,972.38/161,916.20
  6. Step 6: Final answer
    x = 217,896.32

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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.