Home / 171,780.45-236,888.19-131,048.79

Finding the Fourth Proportional to 171,780.45, 236,888.19 and 131,048.79

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Solution

The fourth proportional to 171,780.45, 236,888.19 and 131,048.79 is: 180,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,780.45 : 236,888.19 = 131,048.79 : x
  2. Step 2: Convert to fraction form
    171,780.45/236,888.19 = 131,048.79/x
  3. Step 3: Cross multiply
    171,780.45x = 236,888.19 × 131,048.79
  4. Step 4: Simplify right side
    171,780.45x = 31,043,910,664.79
  5. Step 5: Solve for x
    x = 31,043,910,664.79/171,780.45
  6. Step 6: Final answer
    x = 180,718.53

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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.