Home / 239,391.83-330,363-131,965.72

Finding the Fourth Proportional to 239,391.83, 330,363 and 131,965.72

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Solution

The fourth proportional to 239,391.83, 330,363 and 131,965.72 is: 182,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,391.83 : 330,363 = 131,965.72 : x
  2. Step 2: Convert to fraction form
    239,391.83/330,363 = 131,965.72/x
  3. Step 3: Cross multiply
    239,391.83x = 330,363 × 131,965.72
  4. Step 4: Simplify right side
    239,391.83x = 43,596,590,330.45
  5. Step 5: Solve for x
    x = 43,596,590,330.45/239,391.83
  6. Step 6: Final answer
    x = 182,113.94

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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.