Home / 140,639.30-210,926.13-40,772.69

Finding the Fourth Proportional to 140,639.30, 210,926.13 and 40,772.69

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Solution

The fourth proportional to 140,639.30, 210,926.13 and 40,772.69 is: 61,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.30 : 210,926.13 = 40,772.69 : x
  2. Step 2: Convert to fraction form
    140,639.30/210,926.13 = 40,772.69/x
  3. Step 3: Cross multiply
    140,639.30x = 210,926.13 × 40,772.69
  4. Step 4: Simplify right side
    140,639.30x = 8,600,024,503.86
  5. Step 5: Solve for x
    x = 8,600,024,503.86/140,639.30
  6. Step 6: Final answer
    x = 61,149.51

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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.