Home / 166,705.90-249,983.21-71,891.25

Finding the Fourth Proportional to 166,705.90, 249,983.21 and 71,891.25

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Solution

The fourth proportional to 166,705.90, 249,983.21 and 71,891.25 is: 107,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,705.90 : 249,983.21 = 71,891.25 : x
  2. Step 2: Convert to fraction form
    166,705.90/249,983.21 = 71,891.25/x
  3. Step 3: Cross multiply
    166,705.90x = 249,983.21 × 71,891.25
  4. Step 4: Simplify right side
    166,705.90x = 17,971,604,688.20
  5. Step 5: Solve for x
    x = 17,971,604,688.20/166,705.90
  6. Step 6: Final answer
    x = 107,804.25

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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.