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Finding the Fourth Proportional to 140,604.30, 210,906.45 and 45,834.30

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Solution

The fourth proportional to 140,604.30, 210,906.45 and 45,834.30 is: 68,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,604.30 : 210,906.45 = 45,834.30 : x
  2. Step 2: Convert to fraction form
    140,604.30/210,906.45 = 45,834.30/x
  3. Step 3: Cross multiply
    140,604.30x = 210,906.45 × 45,834.30
  4. Step 4: Simplify right side
    140,604.30x = 9,666,749,501.24
  5. Step 5: Solve for x
    x = 9,666,749,501.24/140,604.30
  6. Step 6: Final answer
    x = 68,751.45

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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.