Home / 166,411.92-249,680.22-86,399.96

Finding the Fourth Proportional to 166,411.92, 249,680.22 and 86,399.96

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Solution

The fourth proportional to 166,411.92, 249,680.22 and 86,399.96 is: 129,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,411.92 : 249,680.22 = 86,399.96 : x
  2. Step 2: Convert to fraction form
    166,411.92/249,680.22 = 86,399.96/x
  3. Step 3: Cross multiply
    166,411.92x = 249,680.22 × 86,399.96
  4. Step 4: Simplify right side
    166,411.92x = 21,572,359,772.39
  5. Step 5: Solve for x
    x = 21,572,359,772.39/166,411.92
  6. Step 6: Final answer
    x = 129,632.30

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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.