Home / 132,511.20-198,698.40-39,004.80

Finding the Fourth Proportional to 132,511.20, 198,698.40 and 39,004.80

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Solution

The fourth proportional to 132,511.20, 198,698.40 and 39,004.80 is: 58,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,511.20 : 198,698.40 = 39,004.80 : x
  2. Step 2: Convert to fraction form
    132,511.20/198,698.40 = 39,004.80/x
  3. Step 3: Cross multiply
    132,511.20x = 198,698.40 × 39,004.80
  4. Step 4: Simplify right side
    132,511.20x = 7,750,191,352.32
  5. Step 5: Solve for x
    x = 7,750,191,352.32/132,511.20
  6. Step 6: Final answer
    x = 58,487.07

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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.