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Finding the Fourth Proportional to 140,801.70, 194,304.72 and 76,269.70

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Solution

The fourth proportional to 140,801.70, 194,304.72 and 76,269.70 is: 105,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,801.70 : 194,304.72 = 76,269.70 : x
  2. Step 2: Convert to fraction form
    140,801.70/194,304.72 = 76,269.70/x
  3. Step 3: Cross multiply
    140,801.70x = 194,304.72 × 76,269.70
  4. Step 4: Simplify right side
    140,801.70x = 14,819,562,702.98
  5. Step 5: Solve for x
    x = 14,819,562,702.98/140,801.70
  6. Step 6: Final answer
    x = 105,251.31

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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.