Home / 154,441.77-213,119.76-86,447.31

Finding the Fourth Proportional to 154,441.77, 213,119.76 and 86,447.31

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Solution

The fourth proportional to 154,441.77, 213,119.76 and 86,447.31 is: 119,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,441.77 : 213,119.76 = 86,447.31 : x
  2. Step 2: Convert to fraction form
    154,441.77/213,119.76 = 86,447.31/x
  3. Step 3: Cross multiply
    154,441.77x = 213,119.76 × 86,447.31
  4. Step 4: Simplify right side
    154,441.77x = 18,423,629,959.85
  5. Step 5: Solve for x
    x = 18,423,629,959.85/154,441.77
  6. Step 6: Final answer
    x = 119,291.76

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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.