Home / 154,665.60-231,998.40-123,561.60

Finding the Fourth Proportional to 154,665.60, 231,998.40 and 123,561.60

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Solution

The fourth proportional to 154,665.60, 231,998.40 and 123,561.60 is: 185,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,665.60 : 231,998.40 = 123,561.60 : x
  2. Step 2: Convert to fraction form
    154,665.60/231,998.40 = 123,561.60/x
  3. Step 3: Cross multiply
    154,665.60x = 231,998.40 × 123,561.60
  4. Step 4: Simplify right side
    154,665.60x = 28,666,093,501.44
  5. Step 5: Solve for x
    x = 28,666,093,501.44/154,665.60
  6. Step 6: Final answer
    x = 185,342.40

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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.