Home / 154,606.10-231,640.35-71,329.30

Finding the Fourth Proportional to 154,606.10, 231,640.35 and 71,329.30

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Solution

The fourth proportional to 154,606.10, 231,640.35 and 71,329.30 is: 106,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,606.10 : 231,640.35 = 71,329.30 : x
  2. Step 2: Convert to fraction form
    154,606.10/231,640.35 = 71,329.30/x
  3. Step 3: Cross multiply
    154,606.10x = 231,640.35 × 71,329.30
  4. Step 4: Simplify right side
    154,606.10x = 16,522,744,017.26
  5. Step 5: Solve for x
    x = 16,522,744,017.26/154,606.10
  6. Step 6: Final answer
    x = 106,869.94

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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.