Home / 154,555.30-231,703.35-80,683.30

Finding the Fourth Proportional to 154,555.30, 231,703.35 and 80,683.30

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Solution

The fourth proportional to 154,555.30, 231,703.35 and 80,683.30 is: 120,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,555.30 : 231,703.35 = 80,683.30 : x
  2. Step 2: Convert to fraction form
    154,555.30/231,703.35 = 80,683.30/x
  3. Step 3: Cross multiply
    154,555.30x = 231,703.35 × 80,683.30
  4. Step 4: Simplify right side
    154,555.30x = 18,694,590,899.06
  5. Step 5: Solve for x
    x = 18,694,590,899.06/154,555.30
  6. Step 6: Final answer
    x = 120,957.29

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1.5x scale

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.