Home / 166,415.40-249,659.55-82,215.90

Finding the Fourth Proportional to 166,415.40, 249,659.55 and 82,215.90

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Solution

The fourth proportional to 166,415.40, 249,659.55 and 82,215.90 is: 123,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,415.40 : 249,659.55 = 82,215.90 : x
  2. Step 2: Convert to fraction form
    166,415.40/249,659.55 = 82,215.90/x
  3. Step 3: Cross multiply
    166,415.40x = 249,659.55 × 82,215.90
  4. Step 4: Simplify right side
    166,415.40x = 20,525,984,596.85
  5. Step 5: Solve for x
    x = 20,525,984,596.85/166,415.40
  6. Step 6: Final answer
    x = 123,341.86

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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.