Home / 139,440.42-209,157.12-39,600.36

Finding the Fourth Proportional to 139,440.42, 209,157.12 and 39,600.36

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Solution

The fourth proportional to 139,440.42, 209,157.12 and 39,600.36 is: 59,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,440.42 : 209,157.12 = 39,600.36 : x
  2. Step 2: Convert to fraction form
    139,440.42/209,157.12 = 39,600.36/x
  3. Step 3: Cross multiply
    139,440.42x = 209,157.12 × 39,600.36
  4. Step 4: Simplify right side
    139,440.42x = 8,282,697,248.56
  5. Step 5: Solve for x
    x = 8,282,697,248.56/139,440.42
  6. Step 6: Final answer
    x = 59,399.54

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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.