Home / 139,909.20-209,925.76-73,333.50

Finding the Fourth Proportional to 139,909.20, 209,925.76 and 73,333.50

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Solution

The fourth proportional to 139,909.20, 209,925.76 and 73,333.50 is: 110,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,909.20 : 209,925.76 = 73,333.50 : x
  2. Step 2: Convert to fraction form
    139,909.20/209,925.76 = 73,333.50/x
  3. Step 3: Cross multiply
    139,909.20x = 209,925.76 × 73,333.50
  4. Step 4: Simplify right side
    139,909.20x = 15,394,590,720.96
  5. Step 5: Solve for x
    x = 15,394,590,720.96/139,909.20
  6. Step 6: Final answer
    x = 110,032.73

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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.