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Finding the Fourth Proportional to 140,604.70, 210,907.05 and 47,110.45

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Solution

The fourth proportional to 140,604.70, 210,907.05 and 47,110.45 is: 70,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,604.70 : 210,907.05 = 47,110.45 : x
  2. Step 2: Convert to fraction form
    140,604.70/210,907.05 = 47,110.45/x
  3. Step 3: Cross multiply
    140,604.70x = 210,907.05 × 47,110.45
  4. Step 4: Simplify right side
    140,604.70x = 9,935,926,033.67
  5. Step 5: Solve for x
    x = 9,935,926,033.67/140,604.70
  6. Step 6: Final answer
    x = 70,665.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.