Home / 131,922.12-182,043.84-84,170.40

Finding the Fourth Proportional to 131,922.12, 182,043.84 and 84,170.40

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Solution

The fourth proportional to 131,922.12, 182,043.84 and 84,170.40 is: 116,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,922.12 : 182,043.84 = 84,170.40 : x
  2. Step 2: Convert to fraction form
    131,922.12/182,043.84 = 84,170.40/x
  3. Step 3: Cross multiply
    131,922.12x = 182,043.84 × 84,170.40
  4. Step 4: Simplify right side
    131,922.12x = 15,322,702,830.34
  5. Step 5: Solve for x
    x = 15,322,702,830.34/131,922.12
  6. Step 6: Final answer
    x = 116,149.61

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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.