Home / 140,638.91-210,960.53-45,868.68

Finding the Fourth Proportional to 140,638.91, 210,960.53 and 45,868.68

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Solution

The fourth proportional to 140,638.91, 210,960.53 and 45,868.68 is: 68,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,638.91 : 210,960.53 = 45,868.68 : x
  2. Step 2: Convert to fraction form
    140,638.91/210,960.53 = 45,868.68/x
  3. Step 3: Cross multiply
    140,638.91x = 210,960.53 × 45,868.68
  4. Step 4: Simplify right side
    140,638.91x = 9,676,480,856.86
  5. Step 5: Solve for x
    x = 9,676,480,856.86/140,638.91
  6. Step 6: Final answer
    x = 68,803.73

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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.