Home / 166,100.06-249,141.20-81,776.16

Finding the Fourth Proportional to 166,100.06, 249,141.20 and 81,776.16

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Solution

The fourth proportional to 166,100.06, 249,141.20 and 81,776.16 is: 122,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,100.06 : 249,141.20 = 81,776.16 : x
  2. Step 2: Convert to fraction form
    166,100.06/249,141.20 = 81,776.16/x
  3. Step 3: Cross multiply
    166,100.06x = 249,141.20 × 81,776.16
  4. Step 4: Simplify right side
    166,100.06x = 20,373,810,224.91
  5. Step 5: Solve for x
    x = 20,373,810,224.91/166,100.06
  6. Step 6: Final answer
    x = 122,659.86

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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.