Home / 212,060.40-317,665.92-127,773.60

Finding the Fourth Proportional to 212,060.40, 317,665.92 and 127,773.60

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Solution

The fourth proportional to 212,060.40, 317,665.92 and 127,773.60 is: 191,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,060.40 : 317,665.92 = 127,773.60 : x
  2. Step 2: Convert to fraction form
    212,060.40/317,665.92 = 127,773.60/x
  3. Step 3: Cross multiply
    212,060.40x = 317,665.92 × 127,773.60
  4. Step 4: Simplify right side
    212,060.40x = 40,589,318,195.71
  5. Step 5: Solve for x
    x = 40,589,318,195.71/212,060.40
  6. Step 6: Final answer
    x = 191,404.52

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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.