Home / 154,810.20-231,869.70-119,635.80

Finding the Fourth Proportional to 154,810.20, 231,869.70 and 119,635.80

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Solution

The fourth proportional to 154,810.20, 231,869.70 and 119,635.80 is: 179,186.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,810.20 : 231,869.70 = 119,635.80 : x
  2. Step 2: Convert to fraction form
    154,810.20/231,869.70 = 119,635.80/x
  3. Step 3: Cross multiply
    154,810.20x = 231,869.70 × 119,635.80
  4. Step 4: Simplify right side
    154,810.20x = 27,739,917,055.26
  5. Step 5: Solve for x
    x = 27,739,917,055.26/154,810.20
  6. Step 6: Final answer
    x = 179,186.62

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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.