Home / 138,567.46-207,855.06-45,073.21

Finding the Fourth Proportional to 138,567.46, 207,855.06 and 45,073.21

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Solution

The fourth proportional to 138,567.46, 207,855.06 and 45,073.21 is: 67,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,567.46 : 207,855.06 = 45,073.21 : x
  2. Step 2: Convert to fraction form
    138,567.46/207,855.06 = 45,073.21/x
  3. Step 3: Cross multiply
    138,567.46x = 207,855.06 × 45,073.21
  4. Step 4: Simplify right side
    138,567.46x = 9,368,693,504.30
  5. Step 5: Solve for x
    x = 9,368,693,504.30/138,567.46
  6. Step 6: Final answer
    x = 67,611.07

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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.