Home / 166,813.20-249,879.60-103,438.80

Finding the Fourth Proportional to 166,813.20, 249,879.60 and 103,438.80

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Solution

The fourth proportional to 166,813.20, 249,879.60 and 103,438.80 is: 154,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,813.20 : 249,879.60 = 103,438.80 : x
  2. Step 2: Convert to fraction form
    166,813.20/249,879.60 = 103,438.80/x
  3. Step 3: Cross multiply
    166,813.20x = 249,879.60 × 103,438.80
  4. Step 4: Simplify right side
    166,813.20x = 25,847,245,968.48
  5. Step 5: Solve for x
    x = 25,847,245,968.48/166,813.20
  6. Step 6: Final answer
    x = 154,947.25

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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.