Home / 154,954.20-232,139.70-79,818.60

Finding the Fourth Proportional to 154,954.20, 232,139.70 and 79,818.60

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Solution

The fourth proportional to 154,954.20, 232,139.70 and 79,818.60 is: 119,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,954.20 : 232,139.70 = 79,818.60 : x
  2. Step 2: Convert to fraction form
    154,954.20/232,139.70 = 79,818.60/x
  3. Step 3: Cross multiply
    154,954.20x = 232,139.70 × 79,818.60
  4. Step 4: Simplify right side
    154,954.20x = 18,529,065,858.42
  5. Step 5: Solve for x
    x = 18,529,065,858.42/154,954.20
  6. Step 6: Final answer
    x = 119,577.69

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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.