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Finding the Fourth Proportional to 177,722.10, 266,485.95 and 72,422.10

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Solution

The fourth proportional to 177,722.10, 266,485.95 and 72,422.10 is: 108,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,722.10 : 266,485.95 = 72,422.10 : x
  2. Step 2: Convert to fraction form
    177,722.10/266,485.95 = 72,422.10/x
  3. Step 3: Cross multiply
    177,722.10x = 266,485.95 × 72,422.10
  4. Step 4: Simplify right side
    177,722.10x = 19,299,472,119.50
  5. Step 5: Solve for x
    x = 19,299,472,119.50/177,722.10
  6. Step 6: Final answer
    x = 108,593.54

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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.