Home / 166,104.95-249,148.49-81,781.04

Finding the Fourth Proportional to 166,104.95, 249,148.49 and 81,781.04

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Solution

The fourth proportional to 166,104.95, 249,148.49 and 81,781.04 is: 122,667.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,104.95 : 249,148.49 = 81,781.04 : x
  2. Step 2: Convert to fraction form
    166,104.95/249,148.49 = 81,781.04/x
  3. Step 3: Cross multiply
    166,104.95x = 249,148.49 × 81,781.04
  4. Step 4: Simplify right side
    166,104.95x = 20,375,622,840.60
  5. Step 5: Solve for x
    x = 20,375,622,840.60/166,104.95
  6. Step 6: Final answer
    x = 122,667.17

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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.