Home / 154,818.70-213,669.58-91,162.42

Finding the Fourth Proportional to 154,818.70, 213,669.58 and 91,162.42

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Solution

The fourth proportional to 154,818.70, 213,669.58 and 91,162.42 is: 125,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,818.70 : 213,669.58 = 91,162.42 : x
  2. Step 2: Convert to fraction form
    154,818.70/213,669.58 = 91,162.42/x
  3. Step 3: Cross multiply
    154,818.70x = 213,669.58 × 91,162.42
  4. Step 4: Simplify right side
    154,818.70x = 19,478,635,993.18
  5. Step 5: Solve for x
    x = 19,478,635,993.18/154,818.70
  6. Step 6: Final answer
    x = 125,815.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.