Home / 108,288.70-162,433.05-103,623.10

Finding the Fourth Proportional to 108,288.70, 162,433.05 and 103,623.10

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Solution

The fourth proportional to 108,288.70, 162,433.05 and 103,623.10 is: 155,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,288.70 : 162,433.05 = 103,623.10 : x
  2. Step 2: Convert to fraction form
    108,288.70/162,433.05 = 103,623.10/x
  3. Step 3: Cross multiply
    108,288.70x = 162,433.05 × 103,623.10
  4. Step 4: Simplify right side
    108,288.70x = 16,831,816,183.46
  5. Step 5: Solve for x
    x = 16,831,816,183.46/108,288.70
  6. Step 6: Final answer
    x = 155,434.65

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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.