Home / 140,328.45-210,520.35-45,540.96

Finding the Fourth Proportional to 140,328.45, 210,520.35 and 45,540.96

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Solution

The fourth proportional to 140,328.45, 210,520.35 and 45,540.96 is: 68,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,328.45 : 210,520.35 = 45,540.96 : x
  2. Step 2: Convert to fraction form
    140,328.45/210,520.35 = 45,540.96/x
  3. Step 3: Cross multiply
    140,328.45x = 210,520.35 × 45,540.96
  4. Step 4: Simplify right side
    140,328.45x = 9,587,298,838.54
  5. Step 5: Solve for x
    x = 9,587,298,838.54/140,328.45
  6. Step 6: Final answer
    x = 68,320.42

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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.