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Finding the Fourth Proportional to 140,450.63, 210,703.73 and 45,674.70

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Solution

The fourth proportional to 140,450.63, 210,703.73 and 45,674.70 is: 68,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,450.63 : 210,703.73 = 45,674.70 : x
  2. Step 2: Convert to fraction form
    140,450.63/210,703.73 = 45,674.70/x
  3. Step 3: Cross multiply
    140,450.63x = 210,703.73 × 45,674.70
  4. Step 4: Simplify right side
    140,450.63x = 9,623,829,770.82
  5. Step 5: Solve for x
    x = 9,623,829,770.82/140,450.63
  6. Step 6: Final answer
    x = 68,521.09

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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.