Home / 154,043.80-231,065.70-54,316.60

Finding the Fourth Proportional to 154,043.80, 231,065.70 and 54,316.60

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Solution

The fourth proportional to 154,043.80, 231,065.70 and 54,316.60 is: 81,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,043.80 : 231,065.70 = 54,316.60 : x
  2. Step 2: Convert to fraction form
    154,043.80/231,065.70 = 54,316.60/x
  3. Step 3: Cross multiply
    154,043.80x = 231,065.70 × 54,316.60
  4. Step 4: Simplify right side
    154,043.80x = 12,550,703,200.62
  5. Step 5: Solve for x
    x = 12,550,703,200.62/154,043.80
  6. Step 6: Final answer
    x = 81,474.90

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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.