Home / 139,982.24-210,003.12-45,217.86

Finding the Fourth Proportional to 139,982.24, 210,003.12 and 45,217.86

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Solution

The fourth proportional to 139,982.24, 210,003.12 and 45,217.86 is: 67,836.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,982.24 : 210,003.12 = 45,217.86 : x
  2. Step 2: Convert to fraction form
    139,982.24/210,003.12 = 45,217.86/x
  3. Step 3: Cross multiply
    139,982.24x = 210,003.12 × 45,217.86
  4. Step 4: Simplify right side
    139,982.24x = 9,495,891,679.72
  5. Step 5: Solve for x
    x = 9,495,891,679.72/139,982.24
  6. Step 6: Final answer
    x = 67,836.41

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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.