Home / 140,004.80-210,007.20-40,156.10

Finding the Fourth Proportional to 140,004.80, 210,007.20 and 40,156.10

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Solution

The fourth proportional to 140,004.80, 210,007.20 and 40,156.10 is: 60,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,004.80 : 210,007.20 = 40,156.10 : x
  2. Step 2: Convert to fraction form
    140,004.80/210,007.20 = 40,156.10/x
  3. Step 3: Cross multiply
    140,004.80x = 210,007.20 × 40,156.10
  4. Step 4: Simplify right side
    140,004.80x = 8,433,070,123.92
  5. Step 5: Solve for x
    x = 8,433,070,123.92/140,004.80
  6. Step 6: Final answer
    x = 60,234.15

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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.