Home / 166,321.80-249,519.15-66,456.90

Finding the Fourth Proportional to 166,321.80, 249,519.15 and 66,456.90

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Solution

The fourth proportional to 166,321.80, 249,519.15 and 66,456.90 is: 99,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,321.80 : 249,519.15 = 66,456.90 : x
  2. Step 2: Convert to fraction form
    166,321.80/249,519.15 = 66,456.90/x
  3. Step 3: Cross multiply
    166,321.80x = 249,519.15 × 66,456.90
  4. Step 4: Simplify right side
    166,321.80x = 16,582,269,199.64
  5. Step 5: Solve for x
    x = 16,582,269,199.64/166,321.80
  6. Step 6: Final answer
    x = 99,699.91

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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.