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Finding the Fourth Proportional to 140,754.60, 194,223.60 and 112,146.84

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Solution

The fourth proportional to 140,754.60, 194,223.60 and 112,146.84 is: 154,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,754.60 : 194,223.60 = 112,146.84 : x
  2. Step 2: Convert to fraction form
    140,754.60/194,223.60 = 112,146.84/x
  3. Step 3: Cross multiply
    140,754.60x = 194,223.60 × 112,146.84
  4. Step 4: Simplify right side
    140,754.60x = 21,781,562,993.42
  5. Step 5: Solve for x
    x = 21,781,562,993.42/140,754.60
  6. Step 6: Final answer
    x = 154,748.50

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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.