Home / 131,989.35-182,048.51-86,650.79

Finding the Fourth Proportional to 131,989.35, 182,048.51 and 86,650.79

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Solution

The fourth proportional to 131,989.35, 182,048.51 and 86,650.79 is: 119,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,989.35 : 182,048.51 = 86,650.79 : x
  2. Step 2: Convert to fraction form
    131,989.35/182,048.51 = 86,650.79/x
  3. Step 3: Cross multiply
    131,989.35x = 182,048.51 × 86,650.79
  4. Step 4: Simplify right side
    131,989.35x = 15,774,647,028.22
  5. Step 5: Solve for x
    x = 15,774,647,028.22/131,989.35
  6. Step 6: Final answer
    x = 119,514.55

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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.