Home / 139,780.28-209,635.04-39,941.00

Finding the Fourth Proportional to 139,780.28, 209,635.04 and 39,941.00

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Solution

The fourth proportional to 139,780.28, 209,635.04 and 39,941.00 is: 59,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,780.28 : 209,635.04 = 39,941.00 : x
  2. Step 2: Convert to fraction form
    139,780.28/209,635.04 = 39,941.00/x
  3. Step 3: Cross multiply
    139,780.28x = 209,635.04 × 39,941.00
  4. Step 4: Simplify right side
    139,780.28x = 8,373,032,745.78
  5. Step 5: Solve for x
    x = 8,373,032,745.78/139,780.28
  6. Step 6: Final answer
    x = 59,901.39

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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.