Home / 154,597.18-213,366.66-86,618.77

Finding the Fourth Proportional to 154,597.18, 213,366.66 and 86,618.77

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Solution

The fourth proportional to 154,597.18, 213,366.66 and 86,618.77 is: 119,546.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,597.18 : 213,366.66 = 86,618.77 : x
  2. Step 2: Convert to fraction form
    154,597.18/213,366.66 = 86,618.77/x
  3. Step 3: Cross multiply
    154,597.18x = 213,366.66 × 86,618.77
  4. Step 4: Simplify right side
    154,597.18x = 18,481,557,648.21
  5. Step 5: Solve for x
    x = 18,481,557,648.21/154,597.18
  6. Step 6: Final answer
    x = 119,546.54

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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.